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Finding the Fourth Proportional to 172,460.88, 258,698.61 and 60,152.40

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Solution

The fourth proportional to 172,460.88, 258,698.61 and 60,152.40 is: 90,231.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,460.88 : 258,698.61 = 60,152.40 : x
  2. Step 2: Convert to fraction form
    172,460.88/258,698.61 = 60,152.40/x
  3. Step 3: Cross multiply
    172,460.88x = 258,698.61 × 60,152.40
  4. Step 4: Simplify right side
    172,460.88x = 15,561,342,268.16
  5. Step 5: Solve for x
    x = 15,561,342,268.16/172,460.88
  6. Step 6: Final answer
    x = 90,231.14

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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.