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Finding the Fourth Proportional to 77,381.52, 116,055.12 and 26,777.52

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Solution

The fourth proportional to 77,381.52, 116,055.12 and 26,777.52 is: 40,160.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,381.52 : 116,055.12 = 26,777.52 : x
  2. Step 2: Convert to fraction form
    77,381.52/116,055.12 = 26,777.52/x
  3. Step 3: Cross multiply
    77,381.52x = 116,055.12 × 26,777.52
  4. Step 4: Simplify right side
    77,381.52x = 3,107,668,296.90
  5. Step 5: Solve for x
    x = 3,107,668,296.90/77,381.52
  6. Step 6: Final answer
    x = 40,160.34

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1.5x scale

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.