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Finding the Fourth Proportional to 157,179.61, 235,637.16 and 68,366.22

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Solution

The fourth proportional to 157,179.61, 235,637.16 and 68,366.22 is: 102,491.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,179.61 : 235,637.16 = 68,366.22 : x
  2. Step 2: Convert to fraction form
    157,179.61/235,637.16 = 68,366.22/x
  3. Step 3: Cross multiply
    157,179.61x = 235,637.16 × 68,366.22
  4. Step 4: Simplify right side
    157,179.61x = 16,109,621,920.74
  5. Step 5: Solve for x
    x = 16,109,621,920.74/157,179.61
  6. Step 6: Final answer
    x = 102,491.81

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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.