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Finding the Fourth Proportional to 363,390.90, 545,044.74 and 97,172.18

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Solution

The fourth proportional to 363,390.90, 545,044.74 and 97,172.18 is: 145,747.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    363,390.90 : 545,044.74 = 97,172.18 : x
  2. Step 2: Convert to fraction form
    363,390.90/545,044.74 = 97,172.18/x
  3. Step 3: Cross multiply
    363,390.90x = 545,044.74 × 97,172.18
  4. Step 4: Simplify right side
    363,390.90x = 52,963,185,583.33
  5. Step 5: Solve for x
    x = 52,963,185,583.33/363,390.90
  6. Step 6: Final answer
    x = 145,747.14

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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.