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Finding the Fourth Proportional to 58,221, 80,341.20 and 34,342.20

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Solution

The fourth proportional to 58,221, 80,341.20 and 34,342.20 is: 47,390.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    58,221 : 80,341.20 = 34,342.20 : x
  2. Step 2: Convert to fraction form
    58,221/80,341.20 = 34,342.20/x
  3. Step 3: Cross multiply
    58,221x = 80,341.20 × 34,342.20
  4. Step 4: Simplify right side
    58,221x = 2,759,093,558.64
  5. Step 5: Solve for x
    x = 2,759,093,558.64/58,221
  6. Step 6: Final answer
    x = 47,390.01

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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.