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Finding the Fourth Proportional to 80,287.68, 110,787.42 and 46,307.28

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Solution

The fourth proportional to 80,287.68, 110,787.42 and 46,307.28 is: 63,898.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,287.68 : 110,787.42 = 46,307.28 : x
  2. Step 2: Convert to fraction form
    80,287.68/110,787.42 = 46,307.28/x
  3. Step 3: Cross multiply
    80,287.68x = 110,787.42 × 46,307.28
  4. Step 4: Simplify right side
    80,287.68x = 5,130,264,078.42
  5. Step 5: Solve for x
    x = 5,130,264,078.42/80,287.68
  6. Step 6: Final answer
    x = 63,898.52

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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.