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Finding the Fourth Proportional to 101,908.91, 152,782.96 and 64,389.91

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Solution

The fourth proportional to 101,908.91, 152,782.96 and 64,389.91 is: 96,534.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,908.91 : 152,782.96 = 64,389.91 : x
  2. Step 2: Convert to fraction form
    101,908.91/152,782.96 = 64,389.91/x
  3. Step 3: Cross multiply
    101,908.91x = 152,782.96 × 64,389.91
  4. Step 4: Simplify right side
    101,908.91x = 9,837,681,043.93
  5. Step 5: Solve for x
    x = 9,837,681,043.93/101,908.91
  6. Step 6: Final answer
    x = 96,534.06

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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.