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Finding the Fourth Proportional to 316,823.25, 475,340.99 and 103,601.01

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Solution

The fourth proportional to 316,823.25, 475,340.99 and 103,601.01 is: 155,436.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    316,823.25 : 475,340.99 = 103,601.01 : x
  2. Step 2: Convert to fraction form
    316,823.25/475,340.99 = 103,601.01/x
  3. Step 3: Cross multiply
    316,823.25x = 475,340.99 × 103,601.01
  4. Step 4: Simplify right side
    316,823.25x = 49,245,806,658.40
  5. Step 5: Solve for x
    x = 49,245,806,658.40/316,823.25
  6. Step 6: Final answer
    x = 155,436.21

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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.