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Finding the Fourth Proportional to 114,010.81, 171,019.69 and 39,129.89

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Solution

The fourth proportional to 114,010.81, 171,019.69 and 39,129.89 is: 58,696.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    114,010.81 : 171,019.69 = 39,129.89 : x
  2. Step 2: Convert to fraction form
    114,010.81/171,019.69 = 39,129.89/x
  3. Step 3: Cross multiply
    114,010.81x = 171,019.69 × 39,129.89
  4. Step 4: Simplify right side
    114,010.81x = 6,691,980,704.61
  5. Step 5: Solve for x
    x = 6,691,980,704.61/114,010.81
  6. Step 6: Final answer
    x = 58,696.02

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1.5x scale

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.