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Finding the Fourth Proportional to 491,159.66, 736,862.07 and 171,316.10

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Solution

The fourth proportional to 491,159.66, 736,862.07 and 171,316.10 is: 257,016.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    491,159.66 : 736,862.07 = 171,316.10 : x
  2. Step 2: Convert to fraction form
    491,159.66/736,862.07 = 171,316.10/x
  3. Step 3: Cross multiply
    491,159.66x = 736,862.07 × 171,316.10
  4. Step 4: Simplify right side
    491,159.66x = 126,236,332,386.02
  5. Step 5: Solve for x
    x = 126,236,332,386.02/491,159.66
  6. Step 6: Final answer
    x = 257,016.90

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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.