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Finding the Fourth Proportional to 361,502.42, 498,862.85 and 198,155.53

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Solution

The fourth proportional to 361,502.42, 498,862.85 and 198,155.53 is: 273,448.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    361,502.42 : 498,862.85 = 198,155.53 : x
  2. Step 2: Convert to fraction form
    361,502.42/498,862.85 = 198,155.53/x
  3. Step 3: Cross multiply
    361,502.42x = 498,862.85 × 198,155.53
  4. Step 4: Simplify right side
    361,502.42x = 98,852,430,533.31
  5. Step 5: Solve for x
    x = 98,852,430,533.31/361,502.42
  6. Step 6: Final answer
    x = 273,448.88

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.