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Finding the Fourth Proportional to 78,470.67, 108,287.27 and 44,482.30

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Solution

The fourth proportional to 78,470.67, 108,287.27 and 44,482.30 is: 61,384.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,470.67 : 108,287.27 = 44,482.30 : x
  2. Step 2: Convert to fraction form
    78,470.67/108,287.27 = 44,482.30/x
  3. Step 3: Cross multiply
    78,470.67x = 108,287.27 × 44,482.30
  4. Step 4: Simplify right side
    78,470.67x = 4,816,866,830.32
  5. Step 5: Solve for x
    x = 4,816,866,830.32/78,470.67
  6. Step 6: Final answer
    x = 61,384.30

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.