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Finding the Fourth Proportional to 109,787.28, 151,506.56 and 59,486.28

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Solution

The fourth proportional to 109,787.28, 151,506.56 and 59,486.28 is: 82,091.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,787.28 : 151,506.56 = 59,486.28 : x
  2. Step 2: Convert to fraction form
    109,787.28/151,506.56 = 59,486.28/x
  3. Step 3: Cross multiply
    109,787.28x = 151,506.56 × 59,486.28
  4. Step 4: Simplify right side
    109,787.28x = 9,012,561,352.57
  5. Step 5: Solve for x
    x = 9,012,561,352.57/109,787.28
  6. Step 6: Final answer
    x = 82,091.13

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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.