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Finding the Fourth Proportional to 109,028.70, 163,521.45 and 52,868.70

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Solution

The fourth proportional to 109,028.70, 163,521.45 and 52,868.70 is: 79,292.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,028.70 : 163,521.45 = 52,868.70 : x
  2. Step 2: Convert to fraction form
    109,028.70/163,521.45 = 52,868.70/x
  3. Step 3: Cross multiply
    109,028.70x = 163,521.45 × 52,868.70
  4. Step 4: Simplify right side
    109,028.70x = 8,645,166,483.62
  5. Step 5: Solve for x
    x = 8,645,166,483.62/109,028.70
  6. Step 6: Final answer
    x = 79,292.58

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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.