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Finding the Fourth Proportional to 223,870.38, 335,700.27 and 90,649.32

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Solution

The fourth proportional to 223,870.38, 335,700.27 and 90,649.32 is: 135,931.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    223,870.38 : 335,700.27 = 90,649.32 : x
  2. Step 2: Convert to fraction form
    223,870.38/335,700.27 = 90,649.32/x
  3. Step 3: Cross multiply
    223,870.38x = 335,700.27 × 90,649.32
  4. Step 4: Simplify right side
    223,870.38x = 30,431,001,199.32
  5. Step 5: Solve for x
    x = 30,431,001,199.32/223,870.38
  6. Step 6: Final answer
    x = 135,931.34

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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.