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Finding the Fourth Proportional to 114,572.80, 171,902.40 and 55,460.80

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Solution

The fourth proportional to 114,572.80, 171,902.40 and 55,460.80 is: 83,212.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    114,572.80 : 171,902.40 = 55,460.80 : x
  2. Step 2: Convert to fraction form
    114,572.80/171,902.40 = 55,460.80/x
  3. Step 3: Cross multiply
    114,572.80x = 171,902.40 × 55,460.80
  4. Step 4: Simplify right side
    114,572.80x = 9,533,844,625.92
  5. Step 5: Solve for x
    x = 9,533,844,625.92/114,572.80
  6. Step 6: Final answer
    x = 83,212.11

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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.