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Finding the Fourth Proportional to 181,062.19, 249,862.70 and 100,493.11

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Solution

The fourth proportional to 181,062.19, 249,862.70 and 100,493.11 is: 138,678.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    181,062.19 : 249,862.70 = 100,493.11 : x
  2. Step 2: Convert to fraction form
    181,062.19/249,862.70 = 100,493.11/x
  3. Step 3: Cross multiply
    181,062.19x = 249,862.70 × 100,493.11
  4. Step 4: Simplify right side
    181,062.19x = 25,109,478,671.44
  5. Step 5: Solve for x
    x = 25,109,478,671.44/181,062.19
  6. Step 6: Final answer
    x = 138,678.76

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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.