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Finding the Fourth Proportional to 170,248.15, 255,371.53 and 51,919.15

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Solution

The fourth proportional to 170,248.15, 255,371.53 and 51,919.15 is: 77,878.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    170,248.15 : 255,371.53 = 51,919.15 : x
  2. Step 2: Convert to fraction form
    170,248.15/255,371.53 = 51,919.15/x
  3. Step 3: Cross multiply
    170,248.15x = 255,371.53 × 51,919.15
  4. Step 4: Simplify right side
    170,248.15x = 13,258,672,771.80
  5. Step 5: Solve for x
    x = 13,258,672,771.80/170,248.15
  6. Step 6: Final answer
    x = 77,878.51

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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.