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Finding the Fourth Proportional to 73,483.38, 109,726 and 71,490.48

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Solution

The fourth proportional to 73,483.38, 109,726 and 71,490.48 is: 106,750.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,483.38 : 109,726 = 71,490.48 : x
  2. Step 2: Convert to fraction form
    73,483.38/109,726 = 71,490.48/x
  3. Step 3: Cross multiply
    73,483.38x = 109,726 × 71,490.48
  4. Step 4: Simplify right side
    73,483.38x = 7,844,364,408.48
  5. Step 5: Solve for x
    x = 7,844,364,408.48/73,483.38
  6. Step 6: Final answer
    x = 106,750.18

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.