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Finding the Fourth Proportional to 143,955.13, 215,840.19 and 59,773.42

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Solution

The fourth proportional to 143,955.13, 215,840.19 and 59,773.42 is: 89,621.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,955.13 : 215,840.19 = 59,773.42 : x
  2. Step 2: Convert to fraction form
    143,955.13/215,840.19 = 59,773.42/x
  3. Step 3: Cross multiply
    143,955.13x = 215,840.19 × 59,773.42
  4. Step 4: Simplify right side
    143,955.13x = 12,901,506,329.75
  5. Step 5: Solve for x
    x = 12,901,506,329.75/143,955.13
  6. Step 6: Final answer
    x = 89,621.72

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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.