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Finding the Fourth Proportional to 202,259.60, 279,116.40 and 111,616.40

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Solution

The fourth proportional to 202,259.60, 279,116.40 and 111,616.40 is: 154,029.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    202,259.60 : 279,116.40 = 111,616.40 : x
  2. Step 2: Convert to fraction form
    202,259.60/279,116.40 = 111,616.40/x
  3. Step 3: Cross multiply
    202,259.60x = 279,116.40 × 111,616.40
  4. Step 4: Simplify right side
    202,259.60x = 31,153,967,748.96
  5. Step 5: Solve for x
    x = 31,153,967,748.96/202,259.60
  6. Step 6: Final answer
    x = 154,029.61

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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.