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Finding the Fourth Proportional to 105,364.66, 158,047.12 and 43,035.16

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Solution

The fourth proportional to 105,364.66, 158,047.12 and 43,035.16 is: 64,552.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,364.66 : 158,047.12 = 43,035.16 : x
  2. Step 2: Convert to fraction form
    105,364.66/158,047.12 = 43,035.16/x
  3. Step 3: Cross multiply
    105,364.66x = 158,047.12 × 43,035.16
  4. Step 4: Simplify right side
    105,364.66x = 6,801,583,096.74
  5. Step 5: Solve for x
    x = 6,801,583,096.74/105,364.66
  6. Step 6: Final answer
    x = 64,552.79

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Why These Related Problems?

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