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Finding the Fourth Proportional to 141,471.68, 212,221.36 and 51,538.82

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Solution

The fourth proportional to 141,471.68, 212,221.36 and 51,538.82 is: 77,313.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,471.68 : 212,221.36 = 51,538.82 : x
  2. Step 2: Convert to fraction form
    141,471.68/212,221.36 = 51,538.82/x
  3. Step 3: Cross multiply
    141,471.68x = 212,221.36 × 51,538.82
  4. Step 4: Simplify right side
    141,471.68x = 10,937,638,473.20
  5. Step 5: Solve for x
    x = 10,937,638,473.20/141,471.68
  6. Step 6: Final answer
    x = 77,313.27

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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.