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Finding the Fourth Proportional to 87,675,063.60, 123,013,827.60 and 87,675,063.60

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Solution

The fourth proportional to 87,675,063.60, 123,013,827.60 and 87,675,063.60 is: 123,013,827.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,675,063.60 : 123,013,827.60 = 87,675,063.60 : x
  2. Step 2: Convert to fraction form
    87,675,063.60/123,013,827.60 = 87,675,063.60/x
  3. Step 3: Cross multiply
    87,675,063.60x = 123,013,827.60 × 87,675,063.60
  4. Step 4: Simplify right side
    87,675,063.60x = 10,785,245,158,509,434
  5. Step 5: Solve for x
    x = 10,785,245,158,509,434/87,675,063.60
  6. Step 6: Final answer
    x = 123,013,827.60

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Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.