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Finding the Fourth Proportional to 75,208.88, 112,813.32 and 38,298.80

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Solution

The fourth proportional to 75,208.88, 112,813.32 and 38,298.80 is: 57,448.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,208.88 : 112,813.32 = 38,298.80 : x
  2. Step 2: Convert to fraction form
    75,208.88/112,813.32 = 38,298.80/x
  3. Step 3: Cross multiply
    75,208.88x = 112,813.32 × 38,298.80
  4. Step 4: Simplify right side
    75,208.88x = 4,320,614,780.02
  5. Step 5: Solve for x
    x = 4,320,614,780.02/75,208.88
  6. Step 6: Final answer
    x = 57,448.20

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1.5x scale

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.