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Finding the Fourth Proportional to 121,092.60, 181,638.90 and 62,043.60

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Solution

The fourth proportional to 121,092.60, 181,638.90 and 62,043.60 is: 93,065.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,092.60 : 181,638.90 = 62,043.60 : x
  2. Step 2: Convert to fraction form
    121,092.60/181,638.90 = 62,043.60/x
  3. Step 3: Cross multiply
    121,092.60x = 181,638.90 × 62,043.60
  4. Step 4: Simplify right side
    121,092.60x = 11,269,531,256.04
  5. Step 5: Solve for x
    x = 11,269,531,256.04/121,092.60
  6. Step 6: Final answer
    x = 93,065.40

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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.