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Finding the Fourth Proportional to 146,897.76, 220,307.28 and 63,772

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Solution

The fourth proportional to 146,897.76, 220,307.28 and 63,772 is: 95,640.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    146,897.76 : 220,307.28 = 63,772 : x
  2. Step 2: Convert to fraction form
    146,897.76/220,307.28 = 63,772/x
  3. Step 3: Cross multiply
    146,897.76x = 220,307.28 × 63,772
  4. Step 4: Simplify right side
    146,897.76x = 14,049,435,860.16
  5. Step 5: Solve for x
    x = 14,049,435,860.16/146,897.76
  6. Step 6: Final answer
    x = 95,640.91

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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.