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Finding the Fourth Proportional to 119,244.42, 178,728.39 and 112,332.42

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Solution

The fourth proportional to 119,244.42, 178,728.39 and 112,332.42 is: 168,368.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    119,244.42 : 178,728.39 = 112,332.42 : x
  2. Step 2: Convert to fraction form
    119,244.42/178,728.39 = 112,332.42/x
  3. Step 3: Cross multiply
    119,244.42x = 178,728.39 × 112,332.42
  4. Step 4: Simplify right side
    119,244.42x = 20,076,992,571.40
  5. Step 5: Solve for x
    x = 20,076,992,571.40/119,244.42
  6. Step 6: Final answer
    x = 168,368.40

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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.