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Finding the Fourth Proportional to 268,552.47, 370,611.72 and 147,702.90

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Solution

The fourth proportional to 268,552.47, 370,611.72 and 147,702.90 is: 203,835.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    268,552.47 : 370,611.72 = 147,702.90 : x
  2. Step 2: Convert to fraction form
    268,552.47/370,611.72 = 147,702.90/x
  3. Step 3: Cross multiply
    268,552.47x = 370,611.72 × 147,702.90
  4. Step 4: Simplify right side
    268,552.47x = 54,740,425,631.67
  5. Step 5: Solve for x
    x = 54,740,425,631.67/268,552.47
  6. Step 6: Final answer
    x = 203,835.12

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.