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Finding the Fourth Proportional to 70,854,591.20, 106,300,549.20 and 25,411,647.20

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Solution

The fourth proportional to 70,854,591.20, 106,300,549.20 and 25,411,647.20 is: 38,124,163.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,854,591.20 : 106,300,549.20 = 25,411,647.20 : x
  2. Step 2: Convert to fraction form
    70,854,591.20/106,300,549.20 = 25,411,647.20/x
  3. Step 3: Cross multiply
    70,854,591.20x = 106,300,549.20 × 25,411,647.20
  4. Step 4: Simplify right side
    70,854,591.20x = 2,701,272,053,436,642
  5. Step 5: Solve for x
    x = 2,701,272,053,436,642/70,854,591.20
  6. Step 6: Final answer
    x = 38,124,163.98

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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.