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Finding the Fourth Proportional to 168,590.87, 232,688.61 and 100,573.80

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Solution

The fourth proportional to 168,590.87, 232,688.61 and 100,573.80 is: 138,811.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    168,590.87 : 232,688.61 = 100,573.80 : x
  2. Step 2: Convert to fraction form
    168,590.87/232,688.61 = 100,573.80/x
  3. Step 3: Cross multiply
    168,590.87x = 232,688.61 × 100,573.80
  4. Step 4: Simplify right side
    168,590.87x = 23,402,376,058.11
  5. Step 5: Solve for x
    x = 23,402,376,058.11/168,590.87
  6. Step 6: Final answer
    x = 138,811.65

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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.