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Finding the Fourth Proportional to 103,005.91, 154,484.63 and 58,046.87

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Solution

The fourth proportional to 103,005.91, 154,484.63 and 58,046.87 is: 87,056.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,005.91 : 154,484.63 = 58,046.87 : x
  2. Step 2: Convert to fraction form
    103,005.91/154,484.63 = 58,046.87/x
  3. Step 3: Cross multiply
    103,005.91x = 154,484.63 × 58,046.87
  4. Step 4: Simplify right side
    103,005.91x = 8,967,348,944.37
  5. Step 5: Solve for x
    x = 8,967,348,944.37/103,005.91
  6. Step 6: Final answer
    x = 87,056.65

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.