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Finding the Fourth Proportional to 90,490.94, 124,877.60 and 52,772.48

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Solution

The fourth proportional to 90,490.94, 124,877.60 and 52,772.48 is: 72,826.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,490.94 : 124,877.60 = 52,772.48 : x
  2. Step 2: Convert to fraction form
    90,490.94/124,877.60 = 52,772.48/x
  3. Step 3: Cross multiply
    90,490.94x = 124,877.60 × 52,772.48
  4. Step 4: Simplify right side
    90,490.94x = 6,590,100,648.45
  5. Step 5: Solve for x
    x = 6,590,100,648.45/90,490.94
  6. Step 6: Final answer
    x = 72,826.08

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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.