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Finding the Fourth Proportional to 170,539.71, 255,809.39 and 58,210.61

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Solution

The fourth proportional to 170,539.71, 255,809.39 and 58,210.61 is: 87,315.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    170,539.71 : 255,809.39 = 58,210.61 : x
  2. Step 2: Convert to fraction form
    170,539.71/255,809.39 = 58,210.61/x
  3. Step 3: Cross multiply
    170,539.71x = 255,809.39 × 58,210.61
  4. Step 4: Simplify right side
    170,539.71x = 14,890,819,065.53
  5. Step 5: Solve for x
    x = 14,890,819,065.53/170,539.71
  6. Step 6: Final answer
    x = 87,315.85

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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.