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Finding the Fourth Proportional to 105,349.86, 158,083.11 and 43,015.50

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Solution

The fourth proportional to 105,349.86, 158,083.11 and 43,015.50 is: 64,547.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,349.86 : 158,083.11 = 43,015.50 : x
  2. Step 2: Convert to fraction form
    105,349.86/158,083.11 = 43,015.50/x
  3. Step 3: Cross multiply
    105,349.86x = 158,083.11 × 43,015.50
  4. Step 4: Simplify right side
    105,349.86x = 6,800,024,018.21
  5. Step 5: Solve for x
    x = 6,800,024,018.21/105,349.86
  6. Step 6: Final answer
    x = 64,547.06

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.