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Finding the Fourth Proportional to 90,235.40, 124,525.94 and 49,952.88

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Solution

The fourth proportional to 90,235.40, 124,525.94 and 49,952.88 is: 68,935.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,235.40 : 124,525.94 = 49,952.88 : x
  2. Step 2: Convert to fraction form
    90,235.40/124,525.94 = 49,952.88/x
  3. Step 3: Cross multiply
    90,235.40x = 124,525.94 × 49,952.88
  4. Step 4: Simplify right side
    90,235.40x = 6,220,429,087.94
  5. Step 5: Solve for x
    x = 6,220,429,087.94/90,235.40
  6. Step 6: Final answer
    x = 68,935.58

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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.