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Finding the Fourth Proportional to 70,806,634.40, 106,209,951.60 and 48,887,645.60

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Solution

The fourth proportional to 70,806,634.40, 106,209,951.60 and 48,887,645.60 is: 73,331,468.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,806,634.40 : 106,209,951.60 = 48,887,645.60 : x
  2. Step 2: Convert to fraction form
    70,806,634.40/106,209,951.60 = 48,887,645.60/x
  3. Step 3: Cross multiply
    70,806,634.40x = 106,209,951.60 × 48,887,645.60
  4. Step 4: Simplify right side
    70,806,634.40x = 5,192,354,473,013,953
  5. Step 5: Solve for x
    x = 5,192,354,473,013,953/70,806,634.40
  6. Step 6: Final answer
    x = 73,331,468.40

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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.