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Finding the Fourth Proportional to 369,038.60, 553,655.10 and 132,356.60

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Solution

The fourth proportional to 369,038.60, 553,655.10 and 132,356.60 is: 198,569.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    369,038.60 : 553,655.10 = 132,356.60 : x
  2. Step 2: Convert to fraction form
    369,038.60/553,655.10 = 132,356.60/x
  3. Step 3: Cross multiply
    369,038.60x = 553,655.10 × 132,356.60
  4. Step 4: Simplify right side
    369,038.60x = 73,279,906,608.66
  5. Step 5: Solve for x
    x = 73,279,906,608.66/369,038.60
  6. Step 6: Final answer
    x = 198,569.76

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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.