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Finding the Fourth Proportional to 76,060.48, 104,927.04 and 49,211.20

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Solution

The fourth proportional to 76,060.48, 104,927.04 and 49,211.20 is: 67,887.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,060.48 : 104,927.04 = 49,211.20 : x
  2. Step 2: Convert to fraction form
    76,060.48/104,927.04 = 49,211.20/x
  3. Step 3: Cross multiply
    76,060.48x = 104,927.04 × 49,211.20
  4. Step 4: Simplify right side
    76,060.48x = 5,163,585,550.85
  5. Step 5: Solve for x
    x = 5,163,585,550.85/76,060.48
  6. Step 6: Final answer
    x = 67,887.89

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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.