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Finding the Fourth Proportional to 73,408.16, 101,311.76 and 68,904.32

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Solution

The fourth proportional to 73,408.16, 101,311.76 and 68,904.32 is: 95,095.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,408.16 : 101,311.76 = 68,904.32 : x
  2. Step 2: Convert to fraction form
    73,408.16/101,311.76 = 68,904.32/x
  3. Step 3: Cross multiply
    73,408.16x = 101,311.76 × 68,904.32
  4. Step 4: Simplify right side
    73,408.16x = 6,980,817,930.80
  5. Step 5: Solve for x
    x = 6,980,817,930.80/73,408.16
  6. Step 6: Final answer
    x = 95,095.94

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.