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Finding the Fourth Proportional to 108,316.80, 149,476.16 and 60,569.60

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Solution

The fourth proportional to 108,316.80, 149,476.16 and 60,569.60 is: 83,585.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,316.80 : 149,476.16 = 60,569.60 : x
  2. Step 2: Convert to fraction form
    108,316.80/149,476.16 = 60,569.60/x
  3. Step 3: Cross multiply
    108,316.80x = 149,476.16 × 60,569.60
  4. Step 4: Simplify right side
    108,316.80x = 9,053,711,220.74
  5. Step 5: Solve for x
    x = 9,053,711,220.74/108,316.80
  6. Step 6: Final answer
    x = 83,585.48

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.