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Finding the Fourth Proportional to 165,510.60, 248,265.90 and 60,315.90

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Solution

The fourth proportional to 165,510.60, 248,265.90 and 60,315.90 is: 90,473.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    165,510.60 : 248,265.90 = 60,315.90 : x
  2. Step 2: Convert to fraction form
    165,510.60/248,265.90 = 60,315.90/x
  3. Step 3: Cross multiply
    165,510.60x = 248,265.90 × 60,315.90
  4. Step 4: Simplify right side
    165,510.60x = 14,974,381,197.81
  5. Step 5: Solve for x
    x = 14,974,381,197.81/165,510.60
  6. Step 6: Final answer
    x = 90,473.85

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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.