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Finding the Fourth Proportional to 114,687.64, 158,263.53 and 63,703.65

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Solution

The fourth proportional to 114,687.64, 158,263.53 and 63,703.65 is: 87,908.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    114,687.64 : 158,263.53 = 63,703.65 : x
  2. Step 2: Convert to fraction form
    114,687.64/158,263.53 = 63,703.65/x
  3. Step 3: Cross multiply
    114,687.64x = 158,263.53 × 63,703.65
  4. Step 4: Simplify right side
    114,687.64x = 10,081,964,522.88
  5. Step 5: Solve for x
    x = 10,081,964,522.88/114,687.64
  6. Step 6: Final answer
    x = 87,908.03

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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.