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Finding the Fourth Proportional to 101,484.15, 140,104.43 and 61,208.07

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Solution

The fourth proportional to 101,484.15, 140,104.43 and 61,208.07 is: 84,501.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,484.15 : 140,104.43 = 61,208.07 : x
  2. Step 2: Convert to fraction form
    101,484.15/140,104.43 = 61,208.07/x
  3. Step 3: Cross multiply
    101,484.15x = 140,104.43 × 61,208.07
  4. Step 4: Simplify right side
    101,484.15x = 8,575,521,452.71
  5. Step 5: Solve for x
    x = 8,575,521,452.71/101,484.15
  6. Step 6: Final answer
    x = 84,501.09

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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.