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Finding the Fourth Proportional to 143,689.44, 215,482.29 and 60,589.92

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Solution

The fourth proportional to 143,689.44, 215,482.29 and 60,589.92 is: 90,863.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,689.44 : 215,482.29 = 60,589.92 : x
  2. Step 2: Convert to fraction form
    143,689.44/215,482.29 = 60,589.92/x
  3. Step 3: Cross multiply
    143,689.44x = 215,482.29 × 60,589.92
  4. Step 4: Simplify right side
    143,689.44x = 13,056,054,712.52
  5. Step 5: Solve for x
    x = 13,056,054,712.52/143,689.44
  6. Step 6: Final answer
    x = 90,863.01

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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.