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Finding the Fourth Proportional to 79,642, 119,470.44 and 23,482.16

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Solution

The fourth proportional to 79,642, 119,470.44 and 23,482.16 is: 35,225.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,642 : 119,470.44 = 23,482.16 : x
  2. Step 2: Convert to fraction form
    79,642/119,470.44 = 23,482.16/x
  3. Step 3: Cross multiply
    79,642x = 119,470.44 × 23,482.16
  4. Step 4: Simplify right side
    79,642x = 2,805,423,987.35
  5. Step 5: Solve for x
    x = 2,805,423,987.35/79,642
  6. Step 6: Final answer
    x = 35,225.43

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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.