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Finding the Fourth Proportional to 143,659.71, 215,563.38 and 63,752.43

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Solution

The fourth proportional to 143,659.71, 215,563.38 and 63,752.43 is: 95,661.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,659.71 : 215,563.38 = 63,752.43 : x
  2. Step 2: Convert to fraction form
    143,659.71/215,563.38 = 63,752.43/x
  3. Step 3: Cross multiply
    143,659.71x = 215,563.38 × 63,752.43
  4. Step 4: Simplify right side
    143,659.71x = 13,742,689,294.01
  5. Step 5: Solve for x
    x = 13,742,689,294.01/143,659.71
  6. Step 6: Final answer
    x = 95,661.40

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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.