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Finding the Fourth Proportional to 178,988.03, 268,363.53 and 70,845.74

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Solution

The fourth proportional to 178,988.03, 268,363.53 and 70,845.74 is: 106,221.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    178,988.03 : 268,363.53 = 70,845.74 : x
  2. Step 2: Convert to fraction form
    178,988.03/268,363.53 = 70,845.74/x
  3. Step 3: Cross multiply
    178,988.03x = 268,363.53 × 70,845.74
  4. Step 4: Simplify right side
    178,988.03x = 19,012,412,536.41
  5. Step 5: Solve for x
    x = 19,012,412,536.41/178,988.03
  6. Step 6: Final answer
    x = 106,221.70

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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.