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Finding the Fourth Proportional to 125,660,551.60, 188,490,827.40 and 65,194,375.60

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Solution

The fourth proportional to 125,660,551.60, 188,490,827.40 and 65,194,375.60 is: 97,791,563.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,660,551.60 : 188,490,827.40 = 65,194,375.60 : x
  2. Step 2: Convert to fraction form
    125,660,551.60/188,490,827.40 = 65,194,375.60/x
  3. Step 3: Cross multiply
    125,660,551.60x = 188,490,827.40 × 65,194,375.60
  4. Step 4: Simplify right side
    125,660,551.60x = 12,288,541,798,670,372
  5. Step 5: Solve for x
    x = 12,288,541,798,670,372/125,660,551.60
  6. Step 6: Final answer
    x = 97,791,563.40

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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.