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Finding the Fourth Proportional to 46,080, 63,568.08 and 40,102.20

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Solution

The fourth proportional to 46,080, 63,568.08 and 40,102.20 is: 55,321.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    46,080 : 63,568.08 = 40,102.20 : x
  2. Step 2: Convert to fraction form
    46,080/63,568.08 = 40,102.20/x
  3. Step 3: Cross multiply
    46,080x = 63,568.08 × 40,102.20
  4. Step 4: Simplify right side
    46,080x = 2,549,219,857.78
  5. Step 5: Solve for x
    x = 2,549,219,857.78/46,080
  6. Step 6: Final answer
    x = 55,321.61

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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.