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Finding the Fourth Proportional to 75,762.79, 104,545.42 and 73,216.15

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Solution

The fourth proportional to 75,762.79, 104,545.42 and 73,216.15 is: 101,031.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,762.79 : 104,545.42 = 73,216.15 : x
  2. Step 2: Convert to fraction form
    75,762.79/104,545.42 = 73,216.15/x
  3. Step 3: Cross multiply
    75,762.79x = 104,545.42 × 73,216.15
  4. Step 4: Simplify right side
    75,762.79x = 7,654,412,708.13
  5. Step 5: Solve for x
    x = 7,654,412,708.13/75,762.79
  6. Step 6: Final answer
    x = 101,031.30

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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.