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Finding the Fourth Proportional to 117,578.76, 162,261.56 and 63,863.16

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Solution

The fourth proportional to 117,578.76, 162,261.56 and 63,863.16 is: 88,132.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,578.76 : 162,261.56 = 63,863.16 : x
  2. Step 2: Convert to fraction form
    117,578.76/162,261.56 = 63,863.16/x
  3. Step 3: Cross multiply
    117,578.76x = 162,261.56 × 63,863.16
  4. Step 4: Simplify right side
    117,578.76x = 10,362,535,968.13
  5. Step 5: Solve for x
    x = 10,362,535,968.13/117,578.76
  6. Step 6: Final answer
    x = 88,132.72

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1.5x scale

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.