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Finding the Fourth Proportional to 174,516.40, 261,774.60 and 49,857.40

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Solution

The fourth proportional to 174,516.40, 261,774.60 and 49,857.40 is: 74,786.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    174,516.40 : 261,774.60 = 49,857.40 : x
  2. Step 2: Convert to fraction form
    174,516.40/261,774.60 = 49,857.40/x
  3. Step 3: Cross multiply
    174,516.40x = 261,774.60 × 49,857.40
  4. Step 4: Simplify right side
    174,516.40x = 13,051,400,942.04
  5. Step 5: Solve for x
    x = 13,051,400,942.04/174,516.40
  6. Step 6: Final answer
    x = 74,786.10

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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.