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Finding the Fourth Proportional to 157,856.40, 236,773.80 and 51,238.80

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Solution

The fourth proportional to 157,856.40, 236,773.80 and 51,238.80 is: 76,854.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,856.40 : 236,773.80 = 51,238.80 : x
  2. Step 2: Convert to fraction form
    157,856.40/236,773.80 = 51,238.80/x
  3. Step 3: Cross multiply
    157,856.40x = 236,773.80 × 51,238.80
  4. Step 4: Simplify right side
    157,856.40x = 12,132,005,383.44
  5. Step 5: Solve for x
    x = 12,132,005,383.44/157,856.40
  6. Step 6: Final answer
    x = 76,854.69

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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.