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Finding the Fourth Proportional to 154,210.62, 231,316.17 and 43,402.62

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Solution

The fourth proportional to 154,210.62, 231,316.17 and 43,402.62 is: 65,104.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,210.62 : 231,316.17 = 43,402.62 : x
  2. Step 2: Convert to fraction form
    154,210.62/231,316.17 = 43,402.62/x
  3. Step 3: Cross multiply
    154,210.62x = 231,316.17 × 43,402.62
  4. Step 4: Simplify right side
    154,210.62x = 10,039,727,826.37
  5. Step 5: Solve for x
    x = 10,039,727,826.37/154,210.62
  6. Step 6: Final answer
    x = 65,104.00

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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.