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Finding the Fourth Proportional to 172,479.52, 258,720.42 and 60,159.32

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Solution

The fourth proportional to 172,479.52, 258,720.42 and 60,159.32 is: 90,239.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,479.52 : 258,720.42 = 60,159.32 : x
  2. Step 2: Convert to fraction form
    172,479.52/258,720.42 = 60,159.32/x
  3. Step 3: Cross multiply
    172,479.52x = 258,720.42 × 60,159.32
  4. Step 4: Simplify right side
    172,479.52x = 15,564,444,537.31
  5. Step 5: Solve for x
    x = 15,564,444,537.31/172,479.52
  6. Step 6: Final answer
    x = 90,239.38

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1.5x scale

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.