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Finding the Fourth Proportional to 90,097.44, 124,330.80 and 49,808.64

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Solution

The fourth proportional to 90,097.44, 124,330.80 and 49,808.64 is: 68,733.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,097.44 : 124,330.80 = 49,808.64 : x
  2. Step 2: Convert to fraction form
    90,097.44/124,330.80 = 49,808.64/x
  3. Step 3: Cross multiply
    90,097.44x = 124,330.80 × 49,808.64
  4. Step 4: Simplify right side
    90,097.44x = 6,192,748,058.11
  5. Step 5: Solve for x
    x = 6,192,748,058.11/90,097.44
  6. Step 6: Final answer
    x = 68,733.90

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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.