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Finding the Fourth Proportional to 178,697.95, 268,098.86 and 72,026.72

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Solution

The fourth proportional to 178,697.95, 268,098.86 and 72,026.72 is: 108,061.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    178,697.95 : 268,098.86 = 72,026.72 : x
  2. Step 2: Convert to fraction form
    178,697.95/268,098.86 = 72,026.72/x
  3. Step 3: Cross multiply
    178,697.95x = 268,098.86 × 72,026.72
  4. Step 4: Simplify right side
    178,697.95x = 19,310,281,366.48
  5. Step 5: Solve for x
    x = 19,310,281,366.48/178,697.95
  6. Step 6: Final answer
    x = 108,061.01

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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.