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Finding the Fourth Proportional to 163,568.70, 245,061.45 and 140,240.70

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Solution

The fourth proportional to 163,568.70, 245,061.45 and 140,240.70 is: 210,111.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    163,568.70 : 245,061.45 = 140,240.70 : x
  2. Step 2: Convert to fraction form
    163,568.70/245,061.45 = 140,240.70/x
  3. Step 3: Cross multiply
    163,568.70x = 245,061.45 × 140,240.70
  4. Step 4: Simplify right side
    163,568.70x = 34,367,589,291.02
  5. Step 5: Solve for x
    x = 34,367,589,291.02/163,568.70
  6. Step 6: Final answer
    x = 210,111.04

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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.