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Finding the Fourth Proportional to 235,639.62, 353,646.54 and 123,354.18

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Solution

The fourth proportional to 235,639.62, 353,646.54 and 123,354.18 is: 185,129.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    235,639.62 : 353,646.54 = 123,354.18 : x
  2. Step 2: Convert to fraction form
    235,639.62/353,646.54 = 123,354.18/x
  3. Step 3: Cross multiply
    235,639.62x = 353,646.54 × 123,354.18
  4. Step 4: Simplify right side
    235,639.62x = 43,623,778,951.54
  5. Step 5: Solve for x
    x = 43,623,778,951.54/235,639.62
  6. Step 6: Final answer
    x = 185,129.22

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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.