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Finding the Fourth Proportional to 316,823.28, 475,341.01 and 103,601.02

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Solution

The fourth proportional to 316,823.28, 475,341.01 and 103,601.02 is: 155,436.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    316,823.28 : 475,341.01 = 103,601.02 : x
  2. Step 2: Convert to fraction form
    316,823.28/475,341.01 = 103,601.02/x
  3. Step 3: Cross multiply
    316,823.28x = 475,341.01 × 103,601.02
  4. Step 4: Simplify right side
    316,823.28x = 49,245,813,613.33
  5. Step 5: Solve for x
    x = 49,245,813,613.33/316,823.28
  6. Step 6: Final answer
    x = 155,436.22

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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.