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Finding the Fourth Proportional to 114,045.60, 171,019.47 and 39,173.28

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Solution

The fourth proportional to 114,045.60, 171,019.47 and 39,173.28 is: 58,743.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    114,045.60 : 171,019.47 = 39,173.28 : x
  2. Step 2: Convert to fraction form
    114,045.60/171,019.47 = 39,173.28/x
  3. Step 3: Cross multiply
    114,045.60x = 171,019.47 × 39,173.28
  4. Step 4: Simplify right side
    114,045.60x = 6,699,393,583.76
  5. Step 5: Solve for x
    x = 6,699,393,583.76/114,045.60
  6. Step 6: Final answer
    x = 58,743.11

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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.