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Finding the Fourth Proportional to 175,637, 242,312.91 and 115,240.97

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Solution

The fourth proportional to 175,637, 242,312.91 and 115,240.97 is: 158,989.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    175,637 : 242,312.91 = 115,240.97 : x
  2. Step 2: Convert to fraction form
    175,637/242,312.91 = 115,240.97/x
  3. Step 3: Cross multiply
    175,637x = 242,312.91 × 115,240.97
  4. Step 4: Simplify right side
    175,637x = 27,924,374,791.92
  5. Step 5: Solve for x
    x = 27,924,374,791.92/175,637
  6. Step 6: Final answer
    x = 158,989.14

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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.