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Finding the Fourth Proportional to 98,328,023.20, 137,404,140.80 and 98,328,023.20

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Solution

The fourth proportional to 98,328,023.20, 137,404,140.80 and 98,328,023.20 is: 137,404,140.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,328,023.20 : 137,404,140.80 = 98,328,023.20 : x
  2. Step 2: Convert to fraction form
    98,328,023.20/137,404,140.80 = 98,328,023.20/x
  3. Step 3: Cross multiply
    98,328,023.20x = 137,404,140.80 × 98,328,023.20
  4. Step 4: Simplify right side
    98,328,023.20x = 13,510,677,544,358,468
  5. Step 5: Solve for x
    x = 13,510,677,544,358,468/98,328,023.20
  6. Step 6: Final answer
    x = 137,404,140.80

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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.