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Finding the Fourth Proportional to 70,756.40, 105,992.13 and 32,752.10

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Solution

The fourth proportional to 70,756.40, 105,992.13 and 32,752.10 is: 49,062.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,756.40 : 105,992.13 = 32,752.10 : x
  2. Step 2: Convert to fraction form
    70,756.40/105,992.13 = 32,752.10/x
  3. Step 3: Cross multiply
    70,756.40x = 105,992.13 × 32,752.10
  4. Step 4: Simplify right side
    70,756.40x = 3,471,464,840.97
  5. Step 5: Solve for x
    x = 3,471,464,840.97/70,756.40
  6. Step 6: Final answer
    x = 49,062.20

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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.