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Finding the Fourth Proportional to 144,369, 216,549.85 and 39,185.24

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Solution

The fourth proportional to 144,369, 216,549.85 and 39,185.24 is: 58,776.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,369 : 216,549.85 = 39,185.24 : x
  2. Step 2: Convert to fraction form
    144,369/216,549.85 = 39,185.24/x
  3. Step 3: Cross multiply
    144,369x = 216,549.85 × 39,185.24
  4. Step 4: Simplify right side
    144,369x = 8,485,557,844.21
  5. Step 5: Solve for x
    x = 8,485,557,844.21/144,369
  6. Step 6: Final answer
    x = 58,776.87

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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.