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Finding the Fourth Proportional to 104,306.93, 143,937.54 and 61,279.73

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Solution

The fourth proportional to 104,306.93, 143,937.54 and 61,279.73 is: 84,562.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,306.93 : 143,937.54 = 61,279.73 : x
  2. Step 2: Convert to fraction form
    104,306.93/143,937.54 = 61,279.73/x
  3. Step 3: Cross multiply
    104,306.93x = 143,937.54 × 61,279.73
  4. Step 4: Simplify right side
    104,306.93x = 8,820,453,588.06
  5. Step 5: Solve for x
    x = 8,820,453,588.06/104,306.93
  6. Step 6: Final answer
    x = 84,562.49

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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.