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Finding the Fourth Proportional to 314,898.12, 472,530.11 and 132,515.51

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Solution

The fourth proportional to 314,898.12, 472,530.11 and 132,515.51 is: 198,850.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    314,898.12 : 472,530.11 = 132,515.51 : x
  2. Step 2: Convert to fraction form
    314,898.12/472,530.11 = 132,515.51/x
  3. Step 3: Cross multiply
    314,898.12x = 472,530.11 × 132,515.51
  4. Step 4: Simplify right side
    314,898.12x = 62,617,565,491.78
  5. Step 5: Solve for x
    x = 62,617,565,491.78/314,898.12
  6. Step 6: Final answer
    x = 198,850.24

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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.