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Finding the Fourth Proportional to 367,430.10, 551,145.15 and 157,089.30

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Solution

The fourth proportional to 367,430.10, 551,145.15 and 157,089.30 is: 235,633.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    367,430.10 : 551,145.15 = 157,089.30 : x
  2. Step 2: Convert to fraction form
    367,430.10/551,145.15 = 157,089.30/x
  3. Step 3: Cross multiply
    367,430.10x = 551,145.15 × 157,089.30
  4. Step 4: Simplify right side
    367,430.10x = 86,579,005,811.90
  5. Step 5: Solve for x
    x = 86,579,005,811.90/367,430.10
  6. Step 6: Final answer
    x = 235,633.95

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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.