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Finding the Fourth Proportional to 174,090.60, 261,135.90 and 49,415.40

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Solution

The fourth proportional to 174,090.60, 261,135.90 and 49,415.40 is: 74,123.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    174,090.60 : 261,135.90 = 49,415.40 : x
  2. Step 2: Convert to fraction form
    174,090.60/261,135.90 = 49,415.40/x
  3. Step 3: Cross multiply
    174,090.60x = 261,135.90 × 49,415.40
  4. Step 4: Simplify right side
    174,090.60x = 12,904,134,952.86
  5. Step 5: Solve for x
    x = 12,904,134,952.86/174,090.60
  6. Step 6: Final answer
    x = 74,123.10

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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.