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Finding the Fourth Proportional to 503,630.81, 755,528.23 and 148,680.71

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Solution

The fourth proportional to 503,630.81, 755,528.23 and 148,680.71 is: 223,045.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    503,630.81 : 755,528.23 = 148,680.71 : x
  2. Step 2: Convert to fraction form
    503,630.81/755,528.23 = 148,680.71/x
  3. Step 3: Cross multiply
    503,630.81x = 755,528.23 × 148,680.71
  4. Step 4: Simplify right side
    503,630.81x = 112,332,475,550.26
  5. Step 5: Solve for x
    x = 112,332,475,550.26/503,630.81
  6. Step 6: Final answer
    x = 223,045.28

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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.