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Finding the Fourth Proportional to 143,376.88, 215,091.30 and 59,090.17

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Solution

The fourth proportional to 143,376.88, 215,091.30 and 59,090.17 is: 88,645.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,376.88 : 215,091.30 = 59,090.17 : x
  2. Step 2: Convert to fraction form
    143,376.88/215,091.30 = 59,090.17/x
  3. Step 3: Cross multiply
    143,376.88x = 215,091.30 × 59,090.17
  4. Step 4: Simplify right side
    143,376.88x = 12,709,780,407.06
  5. Step 5: Solve for x
    x = 12,709,780,407.06/143,376.88
  6. Step 6: Final answer
    x = 88,645.96

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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.