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Finding the Fourth Proportional to 114,603.55, 158,145.40 and 63,613.80

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Solution

The fourth proportional to 114,603.55, 158,145.40 and 63,613.80 is: 87,782.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    114,603.55 : 158,145.40 = 63,613.80 : x
  2. Step 2: Convert to fraction form
    114,603.55/158,145.40 = 63,613.80/x
  3. Step 3: Cross multiply
    114,603.55x = 158,145.40 × 63,613.80
  4. Step 4: Simplify right side
    114,603.55x = 10,060,229,926.04
  5. Step 5: Solve for x
    x = 10,060,229,926.04/114,603.55
  6. Step 6: Final answer
    x = 87,782.88

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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.