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Finding the Fourth Proportional to 113,963.52, 157,275.84 and 63,662.40

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Solution

The fourth proportional to 113,963.52, 157,275.84 and 63,662.40 is: 87,857.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,963.52 : 157,275.84 = 63,662.40 : x
  2. Step 2: Convert to fraction form
    113,963.52/157,275.84 = 63,662.40/x
  3. Step 3: Cross multiply
    113,963.52x = 157,275.84 × 63,662.40
  4. Step 4: Simplify right side
    113,963.52x = 10,012,557,436.42
  5. Step 5: Solve for x
    x = 10,012,557,436.42/113,963.52
  6. Step 6: Final answer
    x = 87,857.57

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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.