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Finding the Fourth Proportional to 157,364.89, 235,879.25 and 89,751.35

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Solution

The fourth proportional to 157,364.89, 235,879.25 and 89,751.35 is: 134,531.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,364.89 : 235,879.25 = 89,751.35 : x
  2. Step 2: Convert to fraction form
    157,364.89/235,879.25 = 89,751.35/x
  3. Step 3: Cross multiply
    157,364.89x = 235,879.25 × 89,751.35
  4. Step 4: Simplify right side
    157,364.89x = 21,170,481,124.49
  5. Step 5: Solve for x
    x = 21,170,481,124.49/157,364.89
  6. Step 6: Final answer
    x = 134,531.16

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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.