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Finding the Fourth Proportional to 107,452.94, 148,247.16 and 61,479

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Solution

The fourth proportional to 107,452.94, 148,247.16 and 61,479 is: 84,819.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    107,452.94 : 148,247.16 = 61,479 : x
  2. Step 2: Convert to fraction form
    107,452.94/148,247.16 = 61,479/x
  3. Step 3: Cross multiply
    107,452.94x = 148,247.16 × 61,479
  4. Step 4: Simplify right side
    107,452.94x = 9,114,087,149.64
  5. Step 5: Solve for x
    x = 9,114,087,149.64/107,452.94
  6. Step 6: Final answer
    x = 84,819.34

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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.