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Finding the Fourth Proportional to 122,203.20, 183,279.20 and 59,918.40

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Solution

The fourth proportional to 122,203.20, 183,279.20 and 59,918.40 is: 89,865.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,203.20 : 183,279.20 = 59,918.40 : x
  2. Step 2: Convert to fraction form
    122,203.20/183,279.20 = 59,918.40/x
  3. Step 3: Cross multiply
    122,203.20x = 183,279.20 × 59,918.40
  4. Step 4: Simplify right side
    122,203.20x = 10,981,796,417.28
  5. Step 5: Solve for x
    x = 10,981,796,417.28/122,203.20
  6. Step 6: Final answer
    x = 89,865.05

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1.5x scale

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.