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Finding the Fourth Proportional to 76,018.80, 104,911.08 and 44,187.60

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Solution

The fourth proportional to 76,018.80, 104,911.08 and 44,187.60 is: 60,981.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,018.80 : 104,911.08 = 44,187.60 : x
  2. Step 2: Convert to fraction form
    76,018.80/104,911.08 = 44,187.60/x
  3. Step 3: Cross multiply
    76,018.80x = 104,911.08 × 44,187.60
  4. Step 4: Simplify right side
    76,018.80x = 4,635,768,838.61
  5. Step 5: Solve for x
    x = 4,635,768,838.61/76,018.80
  6. Step 6: Final answer
    x = 60,981.87

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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.