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Finding the Fourth Proportional to 90,524.52, 124,938.86 and 52,798.77

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Solution

The fourth proportional to 90,524.52, 124,938.86 and 52,798.77 is: 72,871.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,524.52 : 124,938.86 = 52,798.77 : x
  2. Step 2: Convert to fraction form
    90,524.52/124,938.86 = 52,798.77/x
  3. Step 3: Cross multiply
    90,524.52x = 124,938.86 × 52,798.77
  4. Step 4: Simplify right side
    90,524.52x = 6,596,617,869.21
  5. Step 5: Solve for x
    x = 6,596,617,869.21/90,524.52
  6. Step 6: Final answer
    x = 72,871.06

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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.