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Finding the Fourth Proportional to 66,436,011.80, 99,654,017.70 and 60,058,719.80

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Solution

The fourth proportional to 66,436,011.80, 99,654,017.70 and 60,058,719.80 is: 90,088,079.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,436,011.80 : 99,654,017.70 = 60,058,719.80 : x
  2. Step 2: Convert to fraction form
    66,436,011.80/99,654,017.70 = 60,058,719.80/x
  3. Step 3: Cross multiply
    66,436,011.80x = 99,654,017.70 × 60,058,719.80
  4. Step 4: Simplify right side
    66,436,011.80x = 5,985,092,725,988,540
  5. Step 5: Solve for x
    x = 5,985,092,725,988,540/66,436,011.80
  6. Step 6: Final answer
    x = 90,088,079.70

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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.