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Finding the Fourth Proportional to 73,527,843.80, 110,079,189.30 and 71,402,079.80

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Solution

The fourth proportional to 73,527,843.80, 110,079,189.30 and 71,402,079.80 is: 106,896,689.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,527,843.80 : 110,079,189.30 = 71,402,079.80 : x
  2. Step 2: Convert to fraction form
    73,527,843.80/110,079,189.30 = 71,402,079.80/x
  3. Step 3: Cross multiply
    73,527,843.80x = 110,079,189.30 × 71,402,079.80
  4. Step 4: Simplify right side
    73,527,843.80x = 7,859,883,058,717,906
  5. Step 5: Solve for x
    x = 7,859,883,058,717,906/73,527,843.80
  6. Step 6: Final answer
    x = 106,896,689.10

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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.