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Finding the Fourth Proportional to 140,753.05, 210,599.88 and 98,715.19

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Solution

The fourth proportional to 140,753.05, 210,599.88 and 98,715.19 is: 147,701.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,753.05 : 210,599.88 = 98,715.19 : x
  2. Step 2: Convert to fraction form
    140,753.05/210,599.88 = 98,715.19/x
  3. Step 3: Cross multiply
    140,753.05x = 210,599.88 × 98,715.19
  4. Step 4: Simplify right side
    140,753.05x = 20,789,407,168.18
  5. Step 5: Solve for x
    x = 20,789,407,168.18/140,753.05
  6. Step 6: Final answer
    x = 147,701.29

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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.