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Finding the Fourth Proportional to 181,059.57, 249,864.94 and 100,492.31

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Solution

The fourth proportional to 181,059.57, 249,864.94 and 100,492.31 is: 138,680.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    181,059.57 : 249,864.94 = 100,492.31 : x
  2. Step 2: Convert to fraction form
    181,059.57/249,864.94 = 100,492.31/x
  3. Step 3: Cross multiply
    181,059.57x = 249,864.94 × 100,492.31
  4. Step 4: Simplify right side
    181,059.57x = 25,109,505,008.61
  5. Step 5: Solve for x
    x = 25,109,505,008.61/181,059.57
  6. Step 6: Final answer
    x = 138,680.90

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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.