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Finding the Fourth Proportional to 217,291.55, 325,937.33 and 191,025.95

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Solution

The fourth proportional to 217,291.55, 325,937.33 and 191,025.95 is: 286,538.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    217,291.55 : 325,937.33 = 191,025.95 : x
  2. Step 2: Convert to fraction form
    217,291.55/325,937.33 = 191,025.95/x
  3. Step 3: Cross multiply
    217,291.55x = 325,937.33 × 191,025.95
  4. Step 4: Simplify right side
    217,291.55x = 62,262,487,148.58
  5. Step 5: Solve for x
    x = 62,262,487,148.58/217,291.55
  6. Step 6: Final answer
    x = 286,538.93

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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.