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Finding the Fourth Proportional to 103,174.65, 142,370.27 and 60,730.65

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Solution

The fourth proportional to 103,174.65, 142,370.27 and 60,730.65 is: 83,801.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,174.65 : 142,370.27 = 60,730.65 : x
  2. Step 2: Convert to fraction form
    103,174.65/142,370.27 = 60,730.65/x
  3. Step 3: Cross multiply
    103,174.65x = 142,370.27 × 60,730.65
  4. Step 4: Simplify right side
    103,174.65x = 8,646,238,734.12
  5. Step 5: Solve for x
    x = 8,646,238,734.12/103,174.65
  6. Step 6: Final answer
    x = 83,801.97

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.