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Finding the Fourth Proportional to 153,247.88, 229,869.52 and 68,948.52

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Solution

The fourth proportional to 153,247.88, 229,869.52 and 68,948.52 is: 103,421.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    153,247.88 : 229,869.52 = 68,948.52 : x
  2. Step 2: Convert to fraction form
    153,247.88/229,869.52 = 68,948.52/x
  3. Step 3: Cross multiply
    153,247.88x = 229,869.52 × 68,948.52
  4. Step 4: Simplify right side
    153,247.88x = 15,849,163,197.11
  5. Step 5: Solve for x
    x = 15,849,163,197.11/153,247.88
  6. Step 6: Final answer
    x = 103,421.75

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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.