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Finding the Fourth Proportional to 367,700.42, 551,408.48 and 143,030.52

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Solution

The fourth proportional to 367,700.42, 551,408.48 and 143,030.52 is: 214,490.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    367,700.42 : 551,408.48 = 143,030.52 : x
  2. Step 2: Convert to fraction form
    367,700.42/551,408.48 = 143,030.52/x
  3. Step 3: Cross multiply
    367,700.42x = 551,408.48 × 143,030.52
  4. Step 4: Simplify right side
    367,700.42x = 78,868,241,448.02
  5. Step 5: Solve for x
    x = 78,868,241,448.02/367,700.42
  6. Step 6: Final answer
    x = 214,490.48

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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.