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Finding the Fourth Proportional to 114,039.40, 171,059.10 and 111,123.40

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Solution

The fourth proportional to 114,039.40, 171,059.10 and 111,123.40 is: 166,685.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    114,039.40 : 171,059.10 = 111,123.40 : x
  2. Step 2: Convert to fraction form
    114,039.40/171,059.10 = 111,123.40/x
  3. Step 3: Cross multiply
    114,039.40x = 171,059.10 × 111,123.40
  4. Step 4: Simplify right side
    114,039.40x = 19,008,668,792.94
  5. Step 5: Solve for x
    x = 19,008,668,792.94/114,039.40
  6. Step 6: Final answer
    x = 166,685.10

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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.