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Finding the Fourth Proportional to 117,503.10, 162,153.72 and 63,787.68

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Solution

The fourth proportional to 117,503.10, 162,153.72 and 63,787.68 is: 88,026.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,503.10 : 162,153.72 = 63,787.68 : x
  2. Step 2: Convert to fraction form
    117,503.10/162,153.72 = 63,787.68/x
  3. Step 3: Cross multiply
    117,503.10x = 162,153.72 × 63,787.68
  4. Step 4: Simplify right side
    117,503.10x = 10,343,409,602.17
  5. Step 5: Solve for x
    x = 10,343,409,602.17/117,503.10
  6. Step 6: Final answer
    x = 88,026.70

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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.