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Finding the Fourth Proportional to 66,153.97, 99,672.28 and 59,836.15

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Solution

The fourth proportional to 66,153.97, 99,672.28 and 59,836.15 is: 90,153.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,153.97 : 99,672.28 = 59,836.15 : x
  2. Step 2: Convert to fraction form
    66,153.97/99,672.28 = 59,836.15/x
  3. Step 3: Cross multiply
    66,153.97x = 99,672.28 × 59,836.15
  4. Step 4: Simplify right side
    66,153.97x = 5,964,005,496.92
  5. Step 5: Solve for x
    x = 5,964,005,496.92/66,153.97
  6. Step 6: Final answer
    x = 90,153.40

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.