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Finding the Fourth Proportional to 77,895, 107,495.10 and 42,085.02

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Solution

The fourth proportional to 77,895, 107,495.10 and 42,085.02 is: 58,077.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,895 : 107,495.10 = 42,085.02 : x
  2. Step 2: Convert to fraction form
    77,895/107,495.10 = 42,085.02/x
  3. Step 3: Cross multiply
    77,895x = 107,495.10 × 42,085.02
  4. Step 4: Simplify right side
    77,895x = 4,523,933,433.40
  5. Step 5: Solve for x
    x = 4,523,933,433.40/77,895
  6. Step 6: Final answer
    x = 58,077.33

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.