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Finding the Fourth Proportional to 127,671,137.60, 191,506,706.40 and 88,704,046.40

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Solution

The fourth proportional to 127,671,137.60, 191,506,706.40 and 88,704,046.40 is: 133,056,069.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,671,137.60 : 191,506,706.40 = 88,704,046.40 : x
  2. Step 2: Convert to fraction form
    127,671,137.60/191,506,706.40 = 88,704,046.40/x
  3. Step 3: Cross multiply
    127,671,137.60x = 191,506,706.40 × 88,704,046.40
  4. Step 4: Simplify right side
    127,671,137.60x = 16,987,419,770,416,778
  5. Step 5: Solve for x
    x = 16,987,419,770,416,778/127,671,137.60
  6. Step 6: Final answer
    x = 133,056,069.60

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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.