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Finding the Fourth Proportional to 76,632.21, 105,750.83 and 44,368.22

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Solution

The fourth proportional to 76,632.21, 105,750.83 and 44,368.22 is: 61,227.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,632.21 : 105,750.83 = 44,368.22 : x
  2. Step 2: Convert to fraction form
    76,632.21/105,750.83 = 44,368.22/x
  3. Step 3: Cross multiply
    76,632.21x = 105,750.83 × 44,368.22
  4. Step 4: Simplify right side
    76,632.21x = 4,691,976,465.92
  5. Step 5: Solve for x
    x = 4,691,976,465.92/76,632.21
  6. Step 6: Final answer
    x = 61,227.21

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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.