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Finding the Fourth Proportional to 78,296.90, 108,048.23 and 44,304.77

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Solution

The fourth proportional to 78,296.90, 108,048.23 and 44,304.77 is: 61,139.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,296.90 : 108,048.23 = 44,304.77 : x
  2. Step 2: Convert to fraction form
    78,296.90/108,048.23 = 44,304.77/x
  3. Step 3: Cross multiply
    78,296.90x = 108,048.23 × 44,304.77
  4. Step 4: Simplify right side
    78,296.90x = 4,787,051,690.00
  5. Step 5: Solve for x
    x = 4,787,051,690.00/78,296.90
  6. Step 6: Final answer
    x = 61,139.73

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1.5x scale

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.