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Finding the Fourth Proportional to 90,325, 124,648.26 and 50,038.84

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Solution

The fourth proportional to 90,325, 124,648.26 and 50,038.84 is: 69,053.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,325 : 124,648.26 = 50,038.84 : x
  2. Step 2: Convert to fraction form
    90,325/124,648.26 = 50,038.84/x
  3. Step 3: Cross multiply
    90,325x = 124,648.26 × 50,038.84
  4. Step 4: Simplify right side
    90,325x = 6,237,254,338.42
  5. Step 5: Solve for x
    x = 6,237,254,338.42/90,325
  6. Step 6: Final answer
    x = 69,053.47

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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.