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Finding the Fourth Proportional to 65,322.78, 90,005.67 and 44,064.78

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Solution

The fourth proportional to 65,322.78, 90,005.67 and 44,064.78 is: 60,715.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,322.78 : 90,005.67 = 44,064.78 : x
  2. Step 2: Convert to fraction form
    65,322.78/90,005.67 = 44,064.78/x
  3. Step 3: Cross multiply
    65,322.78x = 90,005.67 × 44,064.78
  4. Step 4: Simplify right side
    65,322.78x = 3,966,080,047.30
  5. Step 5: Solve for x
    x = 3,966,080,047.30/65,322.78
  6. Step 6: Final answer
    x = 60,715.11

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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.