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Finding the Fourth Proportional to 292,016.89, 402,983.91 and 157,880.89

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Solution

The fourth proportional to 292,016.89, 402,983.91 and 157,880.89 is: 217,875.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    292,016.89 : 402,983.91 = 157,880.89 : x
  2. Step 2: Convert to fraction form
    292,016.89/402,983.91 = 157,880.89/x
  3. Step 3: Cross multiply
    292,016.89x = 402,983.91 × 157,880.89
  4. Step 4: Simplify right side
    292,016.89x = 63,623,458,366.48
  5. Step 5: Solve for x
    x = 63,623,458,366.48/292,016.89
  6. Step 6: Final answer
    x = 217,875.95

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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.