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Finding the Fourth Proportional to 90,060.71, 124,272.99 and 49,768.98

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Solution

The fourth proportional to 90,060.71, 124,272.99 and 49,768.98 is: 68,675.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,060.71 : 124,272.99 = 49,768.98 : x
  2. Step 2: Convert to fraction form
    90,060.71/124,272.99 = 49,768.98/x
  3. Step 3: Cross multiply
    90,060.71x = 124,272.99 × 49,768.98
  4. Step 4: Simplify right side
    90,060.71x = 6,184,939,953.85
  5. Step 5: Solve for x
    x = 6,184,939,953.85/90,060.71
  6. Step 6: Final answer
    x = 68,675.23

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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.