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Finding the Fourth Proportional to 169,911.56, 234,483.96 and 93,436.48

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Solution

The fourth proportional to 169,911.56, 234,483.96 and 93,436.48 is: 128,945.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    169,911.56 : 234,483.96 = 93,436.48 : x
  2. Step 2: Convert to fraction form
    169,911.56/234,483.96 = 93,436.48/x
  3. Step 3: Cross multiply
    169,911.56x = 234,483.96 × 93,436.48
  4. Step 4: Simplify right side
    169,911.56x = 21,909,355,838.86
  5. Step 5: Solve for x
    x = 21,909,355,838.86/169,911.56
  6. Step 6: Final answer
    x = 128,945.65

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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.