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Finding the Fourth Proportional to 117,580.76, 162,264.32 and 63,865.16

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Solution

The fourth proportional to 117,580.76, 162,264.32 and 63,865.16 is: 88,135.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,580.76 : 162,264.32 = 63,865.16 : x
  2. Step 2: Convert to fraction form
    117,580.76/162,264.32 = 63,865.16/x
  3. Step 3: Cross multiply
    117,580.76x = 162,264.32 × 63,865.16
  4. Step 4: Simplify right side
    117,580.76x = 10,363,036,759.09
  5. Step 5: Solve for x
    x = 10,363,036,759.09/117,580.76
  6. Step 6: Final answer
    x = 88,135.48

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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.