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Finding the Fourth Proportional to 114,059.61, 171,030.74 and 66,685.14

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Solution

The fourth proportional to 114,059.61, 171,030.74 and 66,685.14 is: 99,993.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    114,059.61 : 171,030.74 = 66,685.14 : x
  2. Step 2: Convert to fraction form
    114,059.61/171,030.74 = 66,685.14/x
  3. Step 3: Cross multiply
    114,059.61x = 171,030.74 × 66,685.14
  4. Step 4: Simplify right side
    114,059.61x = 11,405,208,507.78
  5. Step 5: Solve for x
    x = 11,405,208,507.78/114,059.61
  6. Step 6: Final answer
    x = 99,993.40

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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.