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Finding the Fourth Proportional to 70,860,856.60, 106,291,284.90 and 22,991,800.60

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Solution

The fourth proportional to 70,860,856.60, 106,291,284.90 and 22,991,800.60 is: 34,487,700.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,860,856.60 : 106,291,284.90 = 22,991,800.60 : x
  2. Step 2: Convert to fraction form
    70,860,856.60/106,291,284.90 = 22,991,800.60/x
  3. Step 3: Cross multiply
    70,860,856.60x = 106,291,284.90 × 22,991,800.60
  4. Step 4: Simplify right side
    70,860,856.60x = 2,443,828,027,938,591
  5. Step 5: Solve for x
    x = 2,443,828,027,938,591/70,860,856.60
  6. Step 6: Final answer
    x = 34,487,700.90

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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.