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Finding the Fourth Proportional to 73,777.44, 101,782.80 and 51,434.40

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Solution

The fourth proportional to 73,777.44, 101,782.80 and 51,434.40 is: 70,958.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,777.44 : 101,782.80 = 51,434.40 : x
  2. Step 2: Convert to fraction form
    73,777.44/101,782.80 = 51,434.40/x
  3. Step 3: Cross multiply
    73,777.44x = 101,782.80 × 51,434.40
  4. Step 4: Simplify right side
    73,777.44x = 5,235,137,248.32
  5. Step 5: Solve for x
    x = 5,235,137,248.32/73,777.44
  6. Step 6: Final answer
    x = 70,958.51

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.