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Finding the Fourth Proportional to 104,064.52, 143,670.90 and 68,317.06

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Solution

The fourth proportional to 104,064.52, 143,670.90 and 68,317.06 is: 94,318.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,064.52 : 143,670.90 = 68,317.06 : x
  2. Step 2: Convert to fraction form
    104,064.52/143,670.90 = 68,317.06/x
  3. Step 3: Cross multiply
    104,064.52x = 143,670.90 × 68,317.06
  4. Step 4: Simplify right side
    104,064.52x = 9,815,173,495.55
  5. Step 5: Solve for x
    x = 9,815,173,495.55/104,064.52
  6. Step 6: Final answer
    x = 94,318.15

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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.