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Finding the Fourth Proportional to 98,496,468.60, 147,744,702.90 and 57,681,799.80

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Solution

The fourth proportional to 98,496,468.60, 147,744,702.90 and 57,681,799.80 is: 86,522,699.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,496,468.60 : 147,744,702.90 = 57,681,799.80 : x
  2. Step 2: Convert to fraction form
    98,496,468.60/147,744,702.90 = 57,681,799.80/x
  3. Step 3: Cross multiply
    98,496,468.60x = 147,744,702.90 × 57,681,799.80
  4. Step 4: Simplify right side
    98,496,468.60x = 8,522,180,374,188,279
  5. Step 5: Solve for x
    x = 8,522,180,374,188,279/98,496,468.60
  6. Step 6: Final answer
    x = 86,522,699.70

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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.