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Finding the Fourth Proportional to 90,053.62, 124,267.80 and 49,767

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Solution

The fourth proportional to 90,053.62, 124,267.80 and 49,767 is: 68,675.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,053.62 : 124,267.80 = 49,767 : x
  2. Step 2: Convert to fraction form
    90,053.62/124,267.80 = 49,767/x
  3. Step 3: Cross multiply
    90,053.62x = 124,267.80 × 49,767
  4. Step 4: Simplify right side
    90,053.62x = 6,184,435,602.60
  5. Step 5: Solve for x
    x = 6,184,435,602.60/90,053.62
  6. Step 6: Final answer
    x = 68,675.04

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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.