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Finding the Fourth Proportional to 90,443.39, 124,809.93 and 52,199.93

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Solution

The fourth proportional to 90,443.39, 124,809.93 and 52,199.93 is: 72,034.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,443.39 : 124,809.93 = 52,199.93 : x
  2. Step 2: Convert to fraction form
    90,443.39/124,809.93 = 52,199.93/x
  3. Step 3: Cross multiply
    90,443.39x = 124,809.93 × 52,199.93
  4. Step 4: Simplify right side
    90,443.39x = 6,515,069,921.33
  5. Step 5: Solve for x
    x = 6,515,069,921.33/90,443.39
  6. Step 6: Final answer
    x = 72,034.79

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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.