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Finding the Fourth Proportional to 316,823.76, 475,341.74 and 103,601.52

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Solution

The fourth proportional to 316,823.76, 475,341.74 and 103,601.52 is: 155,436.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    316,823.76 : 475,341.74 = 103,601.52 : x
  2. Step 2: Convert to fraction form
    316,823.76/475,341.74 = 103,601.52/x
  3. Step 3: Cross multiply
    316,823.76x = 475,341.74 × 103,601.52
  4. Step 4: Simplify right side
    316,823.76x = 49,246,126,265.44
  5. Step 5: Solve for x
    x = 49,246,126,265.44/316,823.76
  6. Step 6: Final answer
    x = 155,436.97

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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.