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Finding the Fourth Proportional to 108,463.55, 149,678.55 and 60,717.29

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Solution

The fourth proportional to 108,463.55, 149,678.55 and 60,717.29 is: 83,789.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,463.55 : 149,678.55 = 60,717.29 : x
  2. Step 2: Convert to fraction form
    108,463.55/149,678.55 = 60,717.29/x
  3. Step 3: Cross multiply
    108,463.55x = 149,678.55 × 60,717.29
  4. Step 4: Simplify right side
    108,463.55x = 9,088,075,178.74
  5. Step 5: Solve for x
    x = 9,088,075,178.74/108,463.55
  6. Step 6: Final answer
    x = 83,789.21

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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.