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Finding the Fourth Proportional to 170,644.32, 235,379.52 and 103,576.32

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Solution

The fourth proportional to 170,644.32, 235,379.52 and 103,576.32 is: 142,868.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    170,644.32 : 235,379.52 = 103,576.32 : x
  2. Step 2: Convert to fraction form
    170,644.32/235,379.52 = 103,576.32/x
  3. Step 3: Cross multiply
    170,644.32x = 235,379.52 × 103,576.32
  4. Step 4: Simplify right side
    170,644.32x = 24,379,744,484.97
  5. Step 5: Solve for x
    x = 24,379,744,484.97/170,644.32
  6. Step 6: Final answer
    x = 142,868.77

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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.