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Finding the Fourth Proportional to 239,565.79, 359,417.94 and 71,089.84

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Solution

The fourth proportional to 239,565.79, 359,417.94 and 71,089.84 is: 106,655.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    239,565.79 : 359,417.94 = 71,089.84 : x
  2. Step 2: Convert to fraction form
    239,565.79/359,417.94 = 71,089.84/x
  3. Step 3: Cross multiply
    239,565.79x = 359,417.94 × 71,089.84
  4. Step 4: Simplify right side
    239,565.79x = 25,550,963,847.73
  5. Step 5: Solve for x
    x = 25,550,963,847.73/239,565.79
  6. Step 6: Final answer
    x = 106,655.31

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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.