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Finding the Fourth Proportional to 137,957,877.60, 206,760,981.60 and 73,292,661.60

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Solution

The fourth proportional to 137,957,877.60, 206,760,981.60 and 73,292,661.60 is: 109,845,576.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    137,957,877.60 : 206,760,981.60 = 73,292,661.60 : x
  2. Step 2: Convert to fraction form
    137,957,877.60/206,760,981.60 = 73,292,661.60/x
  3. Step 3: Cross multiply
    137,957,877.60x = 206,760,981.60 × 73,292,661.60
  4. Step 4: Simplify right side
    137,957,877.60x = 15,154,062,656,492,624
  5. Step 5: Solve for x
    x = 15,154,062,656,492,624/137,957,877.60
  6. Step 6: Final answer
    x = 109,845,576.93

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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.