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Finding the Fourth Proportional to 114,398.51, 171,590.22 and 39,519.72

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Solution

The fourth proportional to 114,398.51, 171,590.22 and 39,519.72 is: 59,276.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    114,398.51 : 171,590.22 = 39,519.72 : x
  2. Step 2: Convert to fraction form
    114,398.51/171,590.22 = 39,519.72/x
  3. Step 3: Cross multiply
    114,398.51x = 171,590.22 × 39,519.72
  4. Step 4: Simplify right side
    114,398.51x = 6,781,197,449.14
  5. Step 5: Solve for x
    x = 6,781,197,449.14/114,398.51
  6. Step 6: Final answer
    x = 59,276.98

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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.