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Finding the Fourth Proportional to 367,215.14, 550,420.95 and 156,978.02

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Solution

The fourth proportional to 367,215.14, 550,420.95 and 156,978.02 is: 235,295.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    367,215.14 : 550,420.95 = 156,978.02 : x
  2. Step 2: Convert to fraction form
    367,215.14/550,420.95 = 156,978.02/x
  3. Step 3: Cross multiply
    367,215.14x = 550,420.95 × 156,978.02
  4. Step 4: Simplify right side
    367,215.14x = 86,403,990,897.52
  5. Step 5: Solve for x
    x = 86,403,990,897.52/367,215.14
  6. Step 6: Final answer
    x = 235,295.28

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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.