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Finding the Fourth Proportional to 143,528.48, 215,292.48 and 48,768.52

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Solution

The fourth proportional to 143,528.48, 215,292.48 and 48,768.52 is: 73,152.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,528.48 : 215,292.48 = 48,768.52 : x
  2. Step 2: Convert to fraction form
    143,528.48/215,292.48 = 48,768.52/x
  3. Step 3: Cross multiply
    143,528.48x = 215,292.48 × 48,768.52
  4. Step 4: Simplify right side
    143,528.48x = 10,499,495,616.73
  5. Step 5: Solve for x
    x = 10,499,495,616.73/143,528.48
  6. Step 6: Final answer
    x = 73,152.70

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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.