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Finding the Fourth Proportional to 178,706.69, 246,616.94 and 98,135.90

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Solution

The fourth proportional to 178,706.69, 246,616.94 and 98,135.90 is: 135,428.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    178,706.69 : 246,616.94 = 98,135.90 : x
  2. Step 2: Convert to fraction form
    178,706.69/246,616.94 = 98,135.90/x
  3. Step 3: Cross multiply
    178,706.69x = 246,616.94 × 98,135.90
  4. Step 4: Simplify right side
    178,706.69x = 24,201,973,638.38
  5. Step 5: Solve for x
    x = 24,201,973,638.38/178,706.69
  6. Step 6: Final answer
    x = 135,428.47

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1.5x scale

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.