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Finding the Fourth Proportional to 239,569.33, 330,302.15 and 157,884.88

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Solution

The fourth proportional to 239,569.33, 330,302.15 and 157,884.88 is: 217,681.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    239,569.33 : 330,302.15 = 157,884.88 : x
  2. Step 2: Convert to fraction form
    239,569.33/330,302.15 = 157,884.88/x
  3. Step 3: Cross multiply
    239,569.33x = 330,302.15 × 157,884.88
  4. Step 4: Simplify right side
    239,569.33x = 52,149,713,701.31
  5. Step 5: Solve for x
    x = 52,149,713,701.31/239,569.33
  6. Step 6: Final answer
    x = 217,681.10

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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.