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Finding the Fourth Proportional to 66,506.32, 99,649.86 and 59,647.24

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Solution

The fourth proportional to 66,506.32, 99,649.86 and 59,647.24 is: 89,372.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,506.32 : 99,649.86 = 59,647.24 : x
  2. Step 2: Convert to fraction form
    66,506.32/99,649.86 = 59,647.24/x
  3. Step 3: Cross multiply
    66,506.32x = 99,649.86 × 59,647.24
  4. Step 4: Simplify right side
    66,506.32x = 5,943,839,115.39
  5. Step 5: Solve for x
    x = 5,943,839,115.39/66,506.32
  6. Step 6: Final answer
    x = 89,372.55

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.