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Finding the Fourth Proportional to 143,752.94, 215,729.45 and 59,513.54

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Solution

The fourth proportional to 143,752.94, 215,729.45 and 59,513.54 is: 89,311.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,752.94 : 215,729.45 = 59,513.54 : x
  2. Step 2: Convert to fraction form
    143,752.94/215,729.45 = 59,513.54/x
  3. Step 3: Cross multiply
    143,752.94x = 215,729.45 × 59,513.54
  4. Step 4: Simplify right side
    143,752.94x = 12,838,821,875.54
  5. Step 5: Solve for x
    x = 12,838,821,875.54/143,752.94
  6. Step 6: Final answer
    x = 89,311.72

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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.