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Finding the Fourth Proportional to 133,495.91, 200,382.28 and 89,430.59

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Solution

The fourth proportional to 133,495.91, 200,382.28 and 89,430.59 is: 134,238.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,495.91 : 200,382.28 = 89,430.59 : x
  2. Step 2: Convert to fraction form
    133,495.91/200,382.28 = 89,430.59/x
  3. Step 3: Cross multiply
    133,495.91x = 200,382.28 × 89,430.59
  4. Step 4: Simplify right side
    133,495.91x = 17,920,305,803.32
  5. Step 5: Solve for x
    x = 17,920,305,803.32/133,495.91
  6. Step 6: Final answer
    x = 134,238.62

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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.