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Finding the Fourth Proportional to 153,915.70, 230,873.55 and 151,291.30

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Solution

The fourth proportional to 153,915.70, 230,873.55 and 151,291.30 is: 226,936.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    153,915.70 : 230,873.55 = 151,291.30 : x
  2. Step 2: Convert to fraction form
    153,915.70/230,873.55 = 151,291.30/x
  3. Step 3: Cross multiply
    153,915.70x = 230,873.55 × 151,291.30
  4. Step 4: Simplify right side
    153,915.70x = 34,929,159,515.12
  5. Step 5: Solve for x
    x = 34,929,159,515.12/153,915.70
  6. Step 6: Final answer
    x = 226,936.95

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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.