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Finding the Fourth Proportional to 95,156, 142,728.51 and 28,594.70

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Solution

The fourth proportional to 95,156, 142,728.51 and 28,594.70 is: 42,890.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    95,156 : 142,728.51 = 28,594.70 : x
  2. Step 2: Convert to fraction form
    95,156/142,728.51 = 28,594.70/x
  3. Step 3: Cross multiply
    95,156x = 142,728.51 × 28,594.70
  4. Step 4: Simplify right side
    95,156x = 4,081,278,924.90
  5. Step 5: Solve for x
    x = 4,081,278,924.90/95,156
  6. Step 6: Final answer
    x = 42,890.40

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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.