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Finding the Fourth Proportional to 151,795.72, 209,496.54 and 88,133.50

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Solution

The fourth proportional to 151,795.72, 209,496.54 and 88,133.50 is: 121,634.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    151,795.72 : 209,496.54 = 88,133.50 : x
  2. Step 2: Convert to fraction form
    151,795.72/209,496.54 = 88,133.50/x
  3. Step 3: Cross multiply
    151,795.72x = 209,496.54 × 88,133.50
  4. Step 4: Simplify right side
    151,795.72x = 18,463,663,308.09
  5. Step 5: Solve for x
    x = 18,463,663,308.09/151,795.72
  6. Step 6: Final answer
    x = 121,634.94

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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.