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Finding the Fourth Proportional to 100,721,201.20, 151,081,801.80 and 93,068,450.80

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Solution

The fourth proportional to 100,721,201.20, 151,081,801.80 and 93,068,450.80 is: 139,602,676.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,721,201.20 : 151,081,801.80 = 93,068,450.80 : x
  2. Step 2: Convert to fraction form
    100,721,201.20/151,081,801.80 = 93,068,450.80/x
  3. Step 3: Cross multiply
    100,721,201.20x = 151,081,801.80 × 93,068,450.80
  4. Step 4: Simplify right side
    100,721,201.20x = 14,060,949,237,598,652
  5. Step 5: Solve for x
    x = 14,060,949,237,598,652/100,721,201.20
  6. Step 6: Final answer
    x = 139,602,676.20

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.