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Finding the Fourth Proportional to 143,248.50, 214,872.75 and 44,752.50

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Solution

The fourth proportional to 143,248.50, 214,872.75 and 44,752.50 is: 67,128.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,248.50 : 214,872.75 = 44,752.50 : x
  2. Step 2: Convert to fraction form
    143,248.50/214,872.75 = 44,752.50/x
  3. Step 3: Cross multiply
    143,248.50x = 214,872.75 × 44,752.50
  4. Step 4: Simplify right side
    143,248.50x = 9,616,092,744.38
  5. Step 5: Solve for x
    x = 9,616,092,744.38/143,248.50
  6. Step 6: Final answer
    x = 67,128.75

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1.5x scale

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.