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Finding the Fourth Proportional to 115,476.80, 173,215.20 and 53,268.80

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Solution

The fourth proportional to 115,476.80, 173,215.20 and 53,268.80 is: 79,903.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,476.80 : 173,215.20 = 53,268.80 : x
  2. Step 2: Convert to fraction form
    115,476.80/173,215.20 = 53,268.80/x
  3. Step 3: Cross multiply
    115,476.80x = 173,215.20 × 53,268.80
  4. Step 4: Simplify right side
    115,476.80x = 9,226,965,845.76
  5. Step 5: Solve for x
    x = 9,226,965,845.76/115,476.80
  6. Step 6: Final answer
    x = 79,903.20

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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.