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Finding the Fourth Proportional to 174,870.72, 262,306.08 and 69,713.28

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Solution

The fourth proportional to 174,870.72, 262,306.08 and 69,713.28 is: 104,569.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    174,870.72 : 262,306.08 = 69,713.28 : x
  2. Step 2: Convert to fraction form
    174,870.72/262,306.08 = 69,713.28/x
  3. Step 3: Cross multiply
    174,870.72x = 262,306.08 × 69,713.28
  4. Step 4: Simplify right side
    174,870.72x = 18,286,217,200.74
  5. Step 5: Solve for x
    x = 18,286,217,200.74/174,870.72
  6. Step 6: Final answer
    x = 104,569.92

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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.