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Finding the Fourth Proportional to 106,521.84, 159,782.76 and 36,401.76

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Solution

The fourth proportional to 106,521.84, 159,782.76 and 36,401.76 is: 54,602.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    106,521.84 : 159,782.76 = 36,401.76 : x
  2. Step 2: Convert to fraction form
    106,521.84/159,782.76 = 36,401.76/x
  3. Step 3: Cross multiply
    106,521.84x = 159,782.76 × 36,401.76
  4. Step 4: Simplify right side
    106,521.84x = 5,816,373,681.66
  5. Step 5: Solve for x
    x = 5,816,373,681.66/106,521.84
  6. Step 6: Final answer
    x = 54,602.64

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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.