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Finding the Fourth Proportional to 72,616,931.80, 108,925,397.70 and 26,558,711.80

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Solution

The fourth proportional to 72,616,931.80, 108,925,397.70 and 26,558,711.80 is: 39,838,067.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,616,931.80 : 108,925,397.70 = 26,558,711.80 : x
  2. Step 2: Convert to fraction form
    72,616,931.80/108,925,397.70 = 26,558,711.80/x
  3. Step 3: Cross multiply
    72,616,931.80x = 108,925,397.70 × 26,558,711.80
  4. Step 4: Simplify right side
    72,616,931.80x = 2,892,918,245,214,683
  5. Step 5: Solve for x
    x = 2,892,918,245,214,683/72,616,931.80
  6. Step 6: Final answer
    x = 39,838,067.70

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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.