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Finding the Fourth Proportional to 277,509.10, 416,008.50 and 99,972.69

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Solution

The fourth proportional to 277,509.10, 416,008.50 and 99,972.69 is: 149,867.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    277,509.10 : 416,008.50 = 99,972.69 : x
  2. Step 2: Convert to fraction form
    277,509.10/416,008.50 = 99,972.69/x
  3. Step 3: Cross multiply
    277,509.10x = 416,008.50 × 99,972.69
  4. Step 4: Simplify right side
    277,509.10x = 41,589,488,807.87
  5. Step 5: Solve for x
    x = 41,589,488,807.87/277,509.10
  6. Step 6: Final answer
    x = 149,867.12

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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.