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Finding the Fourth Proportional to 113,079.80, 169,619.70 and 29,973.80

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Solution

The fourth proportional to 113,079.80, 169,619.70 and 29,973.80 is: 44,960.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,079.80 : 169,619.70 = 29,973.80 : x
  2. Step 2: Convert to fraction form
    113,079.80/169,619.70 = 29,973.80/x
  3. Step 3: Cross multiply
    113,079.80x = 169,619.70 × 29,973.80
  4. Step 4: Simplify right side
    113,079.80x = 5,084,146,963.86
  5. Step 5: Solve for x
    x = 5,084,146,963.86/113,079.80
  6. Step 6: Final answer
    x = 44,960.70

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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.