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Finding the Fourth Proportional to 95,565.10, 143,311.20 and 28,983.10

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Solution

The fourth proportional to 95,565.10, 143,311.20 and 28,983.10 is: 43,463.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    95,565.10 : 143,311.20 = 28,983.10 : x
  2. Step 2: Convert to fraction form
    95,565.10/143,311.20 = 28,983.10/x
  3. Step 3: Cross multiply
    95,565.10x = 143,311.20 × 28,983.10
  4. Step 4: Simplify right side
    95,565.10x = 4,153,602,840.72
  5. Step 5: Solve for x
    x = 4,153,602,840.72/95,565.10
  6. Step 6: Final answer
    x = 43,463.60

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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.