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Finding the Fourth Proportional to 90,497.72, 124,905.02 and 52,263.49

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Solution

The fourth proportional to 90,497.72, 124,905.02 and 52,263.49 is: 72,134.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,497.72 : 124,905.02 = 52,263.49 : x
  2. Step 2: Convert to fraction form
    90,497.72/124,905.02 = 52,263.49/x
  3. Step 3: Cross multiply
    90,497.72x = 124,905.02 × 52,263.49
  4. Step 4: Simplify right side
    90,497.72x = 6,527,972,614.45
  5. Step 5: Solve for x
    x = 6,527,972,614.45/90,497.72
  6. Step 6: Final answer
    x = 72,134.11

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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.