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Finding the Fourth Proportional to 76,221, 105,188.22 and 44,384.76

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Solution

The fourth proportional to 76,221, 105,188.22 and 44,384.76 is: 61,252.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,221 : 105,188.22 = 44,384.76 : x
  2. Step 2: Convert to fraction form
    76,221/105,188.22 = 44,384.76/x
  3. Step 3: Cross multiply
    76,221x = 105,188.22 × 44,384.76
  4. Step 4: Simplify right side
    76,221x = 4,668,753,899.53
  5. Step 5: Solve for x
    x = 4,668,753,899.53/76,221
  6. Step 6: Final answer
    x = 61,252.86

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Double scale
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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.