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Finding the Fourth Proportional to 171,281.52, 236,463.74 and 103,315.64

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Solution

The fourth proportional to 171,281.52, 236,463.74 and 103,315.64 is: 142,633.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    171,281.52 : 236,463.74 = 103,315.64 : x
  2. Step 2: Convert to fraction form
    171,281.52/236,463.74 = 103,315.64/x
  3. Step 3: Cross multiply
    171,281.52x = 236,463.74 × 103,315.64
  4. Step 4: Simplify right side
    171,281.52x = 24,430,402,634.89
  5. Step 5: Solve for x
    x = 24,430,402,634.89/171,281.52
  6. Step 6: Final answer
    x = 142,633.03

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.