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Finding the Fourth Proportional to 223,686.80, 335,627.40 and 112,878.80

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Solution

The fourth proportional to 223,686.80, 335,627.40 and 112,878.80 is: 169,367.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    223,686.80 : 335,627.40 = 112,878.80 : x
  2. Step 2: Convert to fraction form
    223,686.80/335,627.40 = 112,878.80/x
  3. Step 3: Cross multiply
    223,686.80x = 335,627.40 × 112,878.80
  4. Step 4: Simplify right side
    223,686.80x = 37,885,218,159.12
  5. Step 5: Solve for x
    x = 37,885,218,159.12/223,686.80
  6. Step 6: Final answer
    x = 169,367.25

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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.