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Finding the Fourth Proportional to 92,570.92, 138,869.34 and 30,225.64

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Solution

The fourth proportional to 92,570.92, 138,869.34 and 30,225.64 is: 45,342.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,570.92 : 138,869.34 = 30,225.64 : x
  2. Step 2: Convert to fraction form
    92,570.92/138,869.34 = 30,225.64/x
  3. Step 3: Cross multiply
    92,570.92x = 138,869.34 × 30,225.64
  4. Step 4: Simplify right side
    92,570.92x = 4,197,414,677.88
  5. Step 5: Solve for x
    x = 4,197,414,677.88/92,570.92
  6. Step 6: Final answer
    x = 45,342.69

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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.