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Finding the Fourth Proportional to 153,174.40, 211,349.39 and 89,499.89

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Solution

The fourth proportional to 153,174.40, 211,349.39 and 89,499.89 is: 123,491.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    153,174.40 : 211,349.39 = 89,499.89 : x
  2. Step 2: Convert to fraction form
    153,174.40/211,349.39 = 89,499.89/x
  3. Step 3: Cross multiply
    153,174.40x = 211,349.39 × 89,499.89
  4. Step 4: Simplify right side
    153,174.40x = 18,915,747,237.44
  5. Step 5: Solve for x
    x = 18,915,747,237.44/153,174.40
  6. Step 6: Final answer
    x = 123,491.57

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1.5x scale

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.