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Finding the Fourth Proportional to 90,446, 124,815.48 and 50,165.93

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Solution

The fourth proportional to 90,446, 124,815.48 and 50,165.93 is: 69,228.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,446 : 124,815.48 = 50,165.93 : x
  2. Step 2: Convert to fraction form
    90,446/124,815.48 = 50,165.93/x
  3. Step 3: Cross multiply
    90,446x = 124,815.48 × 50,165.93
  4. Step 4: Simplify right side
    90,446x = 6,261,484,632.60
  5. Step 5: Solve for x
    x = 6,261,484,632.60/90,446
  6. Step 6: Final answer
    x = 69,228.98

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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.