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Finding the Fourth Proportional to 370,681.50, 555,387.38 and 202,319.90

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Solution

The fourth proportional to 370,681.50, 555,387.38 and 202,319.90 is: 303,133.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    370,681.50 : 555,387.38 = 202,319.90 : x
  2. Step 2: Convert to fraction form
    370,681.50/555,387.38 = 202,319.90/x
  3. Step 3: Cross multiply
    370,681.50x = 555,387.38 × 202,319.90
  4. Step 4: Simplify right side
    370,681.50x = 112,365,919,182.86
  5. Step 5: Solve for x
    x = 112,365,919,182.86/370,681.50
  6. Step 6: Final answer
    x = 303,133.33

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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.