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Finding the Fourth Proportional to 143,376.95, 215,091.30 and 59,090.28

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Solution

The fourth proportional to 143,376.95, 215,091.30 and 59,090.28 is: 88,646.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,376.95 : 215,091.30 = 59,090.28 : x
  2. Step 2: Convert to fraction form
    143,376.95/215,091.30 = 59,090.28/x
  3. Step 3: Cross multiply
    143,376.95x = 215,091.30 × 59,090.28
  4. Step 4: Simplify right side
    143,376.95x = 12,709,805,142.56
  5. Step 5: Solve for x
    x = 12,709,805,142.56/143,376.95
  6. Step 6: Final answer
    x = 88,646.08

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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.