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Finding the Fourth Proportional to 61,978.90, 85,501.66 and 44,945.77

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Solution

The fourth proportional to 61,978.90, 85,501.66 and 44,945.77 is: 62,003.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,978.90 : 85,501.66 = 44,945.77 : x
  2. Step 2: Convert to fraction form
    61,978.90/85,501.66 = 44,945.77/x
  3. Step 3: Cross multiply
    61,978.90x = 85,501.66 × 44,945.77
  4. Step 4: Simplify right side
    61,978.90x = 3,842,937,944.98
  5. Step 5: Solve for x
    x = 3,842,937,944.98/61,978.90
  6. Step 6: Final answer
    x = 62,003.97

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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.