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Finding the Fourth Proportional to 97,834,281.60, 146,751,422.40 and 75,229,276.80

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Solution

The fourth proportional to 97,834,281.60, 146,751,422.40 and 75,229,276.80 is: 112,843,915.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    97,834,281.60 : 146,751,422.40 = 75,229,276.80 : x
  2. Step 2: Convert to fraction form
    97,834,281.60/146,751,422.40 = 75,229,276.80/x
  3. Step 3: Cross multiply
    97,834,281.60x = 146,751,422.40 × 75,229,276.80
  4. Step 4: Simplify right side
    97,834,281.60x = 11,040,003,376,523,320
  5. Step 5: Solve for x
    x = 11,040,003,376,523,320/97,834,281.60
  6. Step 6: Final answer
    x = 112,843,915.20

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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.