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Finding the Fourth Proportional to 140,732.40, 211,109.67 and 40,894.32

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Solution

The fourth proportional to 140,732.40, 211,109.67 and 40,894.32 is: 61,344.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,732.40 : 211,109.67 = 40,894.32 : x
  2. Step 2: Convert to fraction form
    140,732.40/211,109.67 = 40,894.32/x
  3. Step 3: Cross multiply
    140,732.40x = 211,109.67 × 40,894.32
  4. Step 4: Simplify right side
    140,732.40x = 8,633,186,400.07
  5. Step 5: Solve for x
    x = 8,633,186,400.07/140,732.40
  6. Step 6: Final answer
    x = 61,344.70

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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.