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Finding the Fourth Proportional to 170,937.40, 256,406.10 and 161,095.90

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Solution

The fourth proportional to 170,937.40, 256,406.10 and 161,095.90 is: 241,643.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    170,937.40 : 256,406.10 = 161,095.90 : x
  2. Step 2: Convert to fraction form
    170,937.40/256,406.10 = 161,095.90/x
  3. Step 3: Cross multiply
    170,937.40x = 256,406.10 × 161,095.90
  4. Step 4: Simplify right side
    170,937.40x = 41,305,971,444.99
  5. Step 5: Solve for x
    x = 41,305,971,444.99/170,937.40
  6. Step 6: Final answer
    x = 241,643.85

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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.