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Finding the Fourth Proportional to 75,144,890.70, 112,717,336.05 and 75,144,890.70

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Solution

The fourth proportional to 75,144,890.70, 112,717,336.05 and 75,144,890.70 is: 112,717,336.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,144,890.70 : 112,717,336.05 = 75,144,890.70 : x
  2. Step 2: Convert to fraction form
    75,144,890.70/112,717,336.05 = 75,144,890.70/x
  3. Step 3: Cross multiply
    75,144,890.70x = 112,717,336.05 × 75,144,890.70
  4. Step 4: Simplify right side
    75,144,890.70x = 8,470,131,897,472,420
  5. Step 5: Solve for x
    x = 8,470,131,897,472,420/75,144,890.70
  6. Step 6: Final answer
    x = 112,717,336.05

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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.