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Finding the Fourth Proportional to 109,673.90, 164,510.85 and 39,553.21

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Solution

The fourth proportional to 109,673.90, 164,510.85 and 39,553.21 is: 59,329.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,673.90 : 164,510.85 = 39,553.21 : x
  2. Step 2: Convert to fraction form
    109,673.90/164,510.85 = 39,553.21/x
  3. Step 3: Cross multiply
    109,673.90x = 164,510.85 × 39,553.21
  4. Step 4: Simplify right side
    109,673.90x = 6,506,932,328.80
  5. Step 5: Solve for x
    x = 6,506,932,328.80/109,673.90
  6. Step 6: Final answer
    x = 59,329.82

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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.