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Finding the Fourth Proportional to 65,970.86, 90,897.19 and 44,713.22

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Solution

The fourth proportional to 65,970.86, 90,897.19 and 44,713.22 is: 61,607.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,970.86 : 90,897.19 = 44,713.22 : x
  2. Step 2: Convert to fraction form
    65,970.86/90,897.19 = 44,713.22/x
  3. Step 3: Cross multiply
    65,970.86x = 90,897.19 × 44,713.22
  4. Step 4: Simplify right side
    65,970.86x = 4,064,305,487.58
  5. Step 5: Solve for x
    x = 4,064,305,487.58/65,970.86
  6. Step 6: Final answer
    x = 61,607.59

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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.