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Finding the Fourth Proportional to 235,061.48, 324,386.12 and 127,631.52

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Solution

The fourth proportional to 235,061.48, 324,386.12 and 127,631.52 is: 176,132.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    235,061.48 : 324,386.12 = 127,631.52 : x
  2. Step 2: Convert to fraction form
    235,061.48/324,386.12 = 127,631.52/x
  3. Step 3: Cross multiply
    235,061.48x = 324,386.12 × 127,631.52
  4. Step 4: Simplify right side
    235,061.48x = 41,401,893,562.50
  5. Step 5: Solve for x
    x = 41,401,893,562.50/235,061.48
  6. Step 6: Final answer
    x = 176,132.19

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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.