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Finding the Fourth Proportional to 178,990.59, 247,007.93 and 98,423.33

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Solution

The fourth proportional to 178,990.59, 247,007.93 and 98,423.33 is: 135,824.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    178,990.59 : 247,007.93 = 98,423.33 : x
  2. Step 2: Convert to fraction form
    178,990.59/247,007.93 = 98,423.33/x
  3. Step 3: Cross multiply
    178,990.59x = 247,007.93 × 98,423.33
  4. Step 4: Simplify right side
    178,990.59x = 24,311,343,007.01
  5. Step 5: Solve for x
    x = 24,311,343,007.01/178,990.59
  6. Step 6: Final answer
    x = 135,824.70

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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.