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Finding the Fourth Proportional to 75,312.42, 103,922.34 and 45,093.54

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Solution

The fourth proportional to 75,312.42, 103,922.34 and 45,093.54 is: 62,223.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,312.42 : 103,922.34 = 45,093.54 : x
  2. Step 2: Convert to fraction form
    75,312.42/103,922.34 = 45,093.54/x
  3. Step 3: Cross multiply
    75,312.42x = 103,922.34 × 45,093.54
  4. Step 4: Simplify right side
    75,312.42x = 4,686,226,195.68
  5. Step 5: Solve for x
    x = 4,686,226,195.68/75,312.42
  6. Step 6: Final answer
    x = 62,223.82

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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.