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Finding the Fourth Proportional to 172,206.06, 258,302.01 and 59,911.74

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Solution

The fourth proportional to 172,206.06, 258,302.01 and 59,911.74 is: 89,865.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,206.06 : 258,302.01 = 59,911.74 : x
  2. Step 2: Convert to fraction form
    172,206.06/258,302.01 = 59,911.74/x
  3. Step 3: Cross multiply
    172,206.06x = 258,302.01 × 59,911.74
  4. Step 4: Simplify right side
    172,206.06x = 15,475,322,864.60
  5. Step 5: Solve for x
    x = 15,475,322,864.60/172,206.06
  6. Step 6: Final answer
    x = 89,865.15

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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.