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Finding the Fourth Proportional to 73,527,892.80, 110,079,262.80 and 71,402,128.80

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Solution

The fourth proportional to 73,527,892.80, 110,079,262.80 and 71,402,128.80 is: 106,896,762.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,527,892.80 : 110,079,262.80 = 71,402,128.80 : x
  2. Step 2: Convert to fraction form
    73,527,892.80/110,079,262.80 = 71,402,128.80/x
  3. Step 3: Cross multiply
    73,527,892.80x = 110,079,262.80 × 71,402,128.80
  4. Step 4: Simplify right side
    73,527,892.80x = 7,859,893,700,654,648
  5. Step 5: Solve for x
    x = 7,859,893,700,654,648/73,527,892.80
  6. Step 6: Final answer
    x = 106,896,762.59

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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.