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Finding the Fourth Proportional to 175,695.72, 242,868.66 and 156,763.11

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Solution

The fourth proportional to 175,695.72, 242,868.66 and 156,763.11 is: 216,697.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    175,695.72 : 242,868.66 = 156,763.11 : x
  2. Step 2: Convert to fraction form
    175,695.72/242,868.66 = 156,763.11/x
  3. Step 3: Cross multiply
    175,695.72x = 242,868.66 × 156,763.11
  4. Step 4: Simplify right side
    175,695.72x = 38,072,846,463.13
  5. Step 5: Solve for x
    x = 38,072,846,463.13/175,695.72
  6. Step 6: Final answer
    x = 216,697.63

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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.