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Finding the Fourth Proportional to 174,865.70, 262,428.15 and 115,681.70

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Solution

The fourth proportional to 174,865.70, 262,428.15 and 115,681.70 is: 173,608.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    174,865.70 : 262,428.15 = 115,681.70 : x
  2. Step 2: Convert to fraction form
    174,865.70/262,428.15 = 115,681.70/x
  3. Step 3: Cross multiply
    174,865.70x = 262,428.15 × 115,681.70
  4. Step 4: Simplify right side
    174,865.70x = 30,358,134,519.86
  5. Step 5: Solve for x
    x = 30,358,134,519.86/174,865.70
  6. Step 6: Final answer
    x = 173,608.29

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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.