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Finding the Fourth Proportional to 234,875.48, 324,123.91 and 142,961.48

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Solution

The fourth proportional to 234,875.48, 324,123.91 and 142,961.48 is: 197,284.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    234,875.48 : 324,123.91 = 142,961.48 : x
  2. Step 2: Convert to fraction form
    234,875.48/324,123.91 = 142,961.48/x
  3. Step 3: Cross multiply
    234,875.48x = 324,123.91 × 142,961.48
  4. Step 4: Simplify right side
    234,875.48x = 46,337,233,876.99
  5. Step 5: Solve for x
    x = 46,337,233,876.99/234,875.48
  6. Step 6: Final answer
    x = 197,284.25

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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.