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Finding the Fourth Proportional to 105,400.56, 158,101.11 and 43,071.06

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Solution

The fourth proportional to 105,400.56, 158,101.11 and 43,071.06 is: 64,606.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,400.56 : 158,101.11 = 43,071.06 : x
  2. Step 2: Convert to fraction form
    105,400.56/158,101.11 = 43,071.06/x
  3. Step 3: Cross multiply
    105,400.56x = 158,101.11 × 43,071.06
  4. Step 4: Simplify right side
    105,400.56x = 6,809,582,394.88
  5. Step 5: Solve for x
    x = 6,809,582,394.88/105,400.56
  6. Step 6: Final answer
    x = 64,606.70

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1.5x scale

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.