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Finding the Fourth Proportional to 147,376.61, 221,111.62 and 52,604.69

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Solution

The fourth proportional to 147,376.61, 221,111.62 and 52,604.69 is: 78,923.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,376.61 : 221,111.62 = 52,604.69 : x
  2. Step 2: Convert to fraction form
    147,376.61/221,111.62 = 52,604.69/x
  3. Step 3: Cross multiply
    147,376.61x = 221,111.62 × 52,604.69
  4. Step 4: Simplify right side
    147,376.61x = 11,631,508,646.77
  5. Step 5: Solve for x
    x = 11,631,508,646.77/147,376.61
  6. Step 6: Final answer
    x = 78,923.71

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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.