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Finding the Fourth Proportional to 114,588, 158,131.44 and 64,285.92

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Solution

The fourth proportional to 114,588, 158,131.44 and 64,285.92 is: 88,714.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    114,588 : 158,131.44 = 64,285.92 : x
  2. Step 2: Convert to fraction form
    114,588/158,131.44 = 64,285.92/x
  3. Step 3: Cross multiply
    114,588x = 158,131.44 × 64,285.92
  4. Step 4: Simplify right side
    114,588x = 10,165,625,101.32
  5. Step 5: Solve for x
    x = 10,165,625,101.32/114,588
  6. Step 6: Final answer
    x = 88,714.57

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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.