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Finding the Fourth Proportional to 368,718.77, 553,078.16 and 132,227.53

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Solution

The fourth proportional to 368,718.77, 553,078.16 and 132,227.53 is: 198,341.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    368,718.77 : 553,078.16 = 132,227.53 : x
  2. Step 2: Convert to fraction form
    368,718.77/553,078.16 = 132,227.53/x
  3. Step 3: Cross multiply
    368,718.77x = 553,078.16 × 132,227.53
  4. Step 4: Simplify right side
    368,718.77x = 73,132,157,941.62
  5. Step 5: Solve for x
    x = 73,132,157,941.62/368,718.77
  6. Step 6: Final answer
    x = 198,341.29

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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.