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Finding the Fourth Proportional to 239,859.44, 359,723.52 and 90,088.16

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Solution

The fourth proportional to 239,859.44, 359,723.52 and 90,088.16 is: 135,107.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    239,859.44 : 359,723.52 = 90,088.16 : x
  2. Step 2: Convert to fraction form
    239,859.44/359,723.52 = 90,088.16/x
  3. Step 3: Cross multiply
    239,859.44x = 359,723.52 × 90,088.16
  4. Step 4: Simplify right side
    239,859.44x = 32,406,830,025.52
  5. Step 5: Solve for x
    x = 32,406,830,025.52/239,859.44
  6. Step 6: Final answer
    x = 135,107.59

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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.