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Finding the Fourth Proportional to 117,502.86, 162,152.87 and 63,787.85

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Solution

The fourth proportional to 117,502.86, 162,152.87 and 63,787.85 is: 88,026.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,502.86 : 162,152.87 = 63,787.85 : x
  2. Step 2: Convert to fraction form
    117,502.86/162,152.87 = 63,787.85/x
  3. Step 3: Cross multiply
    117,502.86x = 162,152.87 × 63,787.85
  4. Step 4: Simplify right side
    117,502.86x = 10,343,381,818.93
  5. Step 5: Solve for x
    x = 10,343,381,818.93/117,502.86
  6. Step 6: Final answer
    x = 88,026.64

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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.