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Finding the Fourth Proportional to 117,502.56, 162,153.16 and 63,787.20

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Solution

The fourth proportional to 117,502.56, 162,153.16 and 63,787.20 is: 88,026.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,502.56 : 162,153.16 = 63,787.20 : x
  2. Step 2: Convert to fraction form
    117,502.56/162,153.16 = 63,787.20/x
  3. Step 3: Cross multiply
    117,502.56x = 162,153.16 × 63,787.20
  4. Step 4: Simplify right side
    117,502.56x = 10,343,296,047.55
  5. Step 5: Solve for x
    x = 10,343,296,047.55/117,502.56
  6. Step 6: Final answer
    x = 88,026.13

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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.