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Finding the Fourth Proportional to 108,312.30, 149,472.90 and 60,564.60

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Solution

The fourth proportional to 108,312.30, 149,472.90 and 60,564.60 is: 83,580.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,312.30 : 149,472.90 = 60,564.60 : x
  2. Step 2: Convert to fraction form
    108,312.30/149,472.90 = 60,564.60/x
  3. Step 3: Cross multiply
    108,312.30x = 149,472.90 × 60,564.60
  4. Step 4: Simplify right side
    108,312.30x = 9,052,766,399.34
  5. Step 5: Solve for x
    x = 9,052,766,399.34/108,312.30
  6. Step 6: Final answer
    x = 83,580.22

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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.