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Finding the Fourth Proportional to 117,560, 162,232.76 and 63,845.03

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Solution

The fourth proportional to 117,560, 162,232.76 and 63,845.03 is: 88,106.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,560 : 162,232.76 = 63,845.03 : x
  2. Step 2: Convert to fraction form
    117,560/162,232.76 = 63,845.03/x
  3. Step 3: Cross multiply
    117,560x = 162,232.76 × 63,845.03
  4. Step 4: Simplify right side
    117,560x = 10,357,755,429.18
  5. Step 5: Solve for x
    x = 10,357,755,429.18/117,560
  6. Step 6: Final answer
    x = 88,106.12

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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.