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Finding the Fourth Proportional to 45,272,856.60, 67,909,284.90 and 45,272,856.60

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Solution

The fourth proportional to 45,272,856.60, 67,909,284.90 and 45,272,856.60 is: 67,909,284.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,272,856.60 : 67,909,284.90 = 45,272,856.60 : x
  2. Step 2: Convert to fraction form
    45,272,856.60/67,909,284.90 = 45,272,856.60/x
  3. Step 3: Cross multiply
    45,272,856.60x = 67,909,284.90 × 45,272,856.60
  4. Step 4: Simplify right side
    45,272,856.60x = 3,074,447,317,086,245.50
  5. Step 5: Solve for x
    x = 3,074,447,317,086,245.50/45,272,856.60
  6. Step 6: Final answer
    x = 67,909,284.90

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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.