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Finding the Fourth Proportional to 172,904.13, 259,417.22 and 60,615.63

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Solution

The fourth proportional to 172,904.13, 259,417.22 and 60,615.63 is: 90,944.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,904.13 : 259,417.22 = 60,615.63 : x
  2. Step 2: Convert to fraction form
    172,904.13/259,417.22 = 60,615.63/x
  3. Step 3: Cross multiply
    172,904.13x = 259,417.22 × 60,615.63
  4. Step 4: Simplify right side
    172,904.13x = 15,724,737,920.07
  5. Step 5: Solve for x
    x = 15,724,737,920.07/172,904.13
  6. Step 6: Final answer
    x = 90,944.84

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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.