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Finding the Fourth Proportional to 152,656.43, 210,691.08 and 84,695.29

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Solution

The fourth proportional to 152,656.43, 210,691.08 and 84,695.29 is: 116,893.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    152,656.43 : 210,691.08 = 84,695.29 : x
  2. Step 2: Convert to fraction form
    152,656.43/210,691.08 = 84,695.29/x
  3. Step 3: Cross multiply
    152,656.43x = 210,691.08 × 84,695.29
  4. Step 4: Simplify right side
    152,656.43x = 17,844,541,594.29
  5. Step 5: Solve for x
    x = 17,844,541,594.29/152,656.43
  6. Step 6: Final answer
    x = 116,893.49

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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.