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Finding the Fourth Proportional to 291,224.01, 401,902.07 and 163,907.85

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Solution

The fourth proportional to 291,224.01, 401,902.07 and 163,907.85 is: 226,200.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    291,224.01 : 401,902.07 = 163,907.85 : x
  2. Step 2: Convert to fraction form
    291,224.01/401,902.07 = 163,907.85/x
  3. Step 3: Cross multiply
    291,224.01x = 401,902.07 × 163,907.85
  4. Step 4: Simplify right side
    291,224.01x = 65,874,903,384.71
  5. Step 5: Solve for x
    x = 65,874,903,384.71/291,224.01
  6. Step 6: Final answer
    x = 226,200.11

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.