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Finding the Fourth Proportional to 90,053.95, 124,274.84 and 49,218.90

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Solution

The fourth proportional to 90,053.95, 124,274.84 and 49,218.90 is: 67,922.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,053.95 : 124,274.84 = 49,218.90 : x
  2. Step 2: Convert to fraction form
    90,053.95/124,274.84 = 49,218.90/x
  3. Step 3: Cross multiply
    90,053.95x = 124,274.84 × 49,218.90
  4. Step 4: Simplify right side
    90,053.95x = 6,116,670,860.95
  5. Step 5: Solve for x
    x = 6,116,670,860.95/90,053.95
  6. Step 6: Final answer
    x = 67,922.29

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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.