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Finding the Fourth Proportional to 172,191.48, 257,806.08 and 93,022.08

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Solution

The fourth proportional to 172,191.48, 257,806.08 and 93,022.08 is: 139,273.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,191.48 : 257,806.08 = 93,022.08 : x
  2. Step 2: Convert to fraction form
    172,191.48/257,806.08 = 93,022.08/x
  3. Step 3: Cross multiply
    172,191.48x = 257,806.08 × 93,022.08
  4. Step 4: Simplify right side
    172,191.48x = 23,981,657,798.25
  5. Step 5: Solve for x
    x = 23,981,657,798.25/172,191.48
  6. Step 6: Final answer
    x = 139,273.20

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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.