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Finding the Fourth Proportional to 57,956,440.80, 86,945,158.80 and 29,130,031.20

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Solution

The fourth proportional to 57,956,440.80, 86,945,158.80 and 29,130,031.20 is: 43,700,323.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,956,440.80 : 86,945,158.80 = 29,130,031.20 : x
  2. Step 2: Convert to fraction form
    57,956,440.80/86,945,158.80 = 29,130,031.20/x
  3. Step 3: Cross multiply
    57,956,440.80x = 86,945,158.80 × 29,130,031.20
  4. Step 4: Simplify right side
    57,956,440.80x = 2,532,715,188,532,954.50
  5. Step 5: Solve for x
    x = 2,532,715,188,532,954.50/57,956,440.80
  6. Step 6: Final answer
    x = 43,700,323.10

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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.