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Finding the Fourth Proportional to 174,656.37, 261,984.51 and 74,751.78

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Solution

The fourth proportional to 174,656.37, 261,984.51 and 74,751.78 is: 112,127.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    174,656.37 : 261,984.51 = 74,751.78 : x
  2. Step 2: Convert to fraction form
    174,656.37/261,984.51 = 74,751.78/x
  3. Step 3: Cross multiply
    174,656.37x = 261,984.51 × 74,751.78
  4. Step 4: Simplify right side
    174,656.37x = 19,583,808,454.93
  5. Step 5: Solve for x
    x = 19,583,808,454.93/174,656.37
  6. Step 6: Final answer
    x = 112,127.65

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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.