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Finding the Fourth Proportional to 100,670,028.80, 150,893,068.80 and 55,264,409.60

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Solution

The fourth proportional to 100,670,028.80, 150,893,068.80 and 55,264,409.60 is: 82,835,144.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,670,028.80 : 150,893,068.80 = 55,264,409.60 : x
  2. Step 2: Convert to fraction form
    100,670,028.80/150,893,068.80 = 55,264,409.60/x
  3. Step 3: Cross multiply
    100,670,028.80x = 150,893,068.80 × 55,264,409.60
  4. Step 4: Simplify right side
    100,670,028.80x = 8,339,016,359,964,181
  5. Step 5: Solve for x
    x = 8,339,016,359,964,181/100,670,028.80
  6. Step 6: Final answer
    x = 82,835,144.28

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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.