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Finding the Fourth Proportional to 92,530.32, 138,795.48 and 45,736.08

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Solution

The fourth proportional to 92,530.32, 138,795.48 and 45,736.08 is: 68,604.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,530.32 : 138,795.48 = 45,736.08 : x
  2. Step 2: Convert to fraction form
    92,530.32/138,795.48 = 45,736.08/x
  3. Step 3: Cross multiply
    92,530.32x = 138,795.48 × 45,736.08
  4. Step 4: Simplify right side
    92,530.32x = 6,347,961,176.92
  5. Step 5: Solve for x
    x = 6,347,961,176.92/92,530.32
  6. Step 6: Final answer
    x = 68,604.12

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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.