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Finding the Fourth Proportional to 291,930.54, 402,855.01 and 171,152.27

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Solution

The fourth proportional to 291,930.54, 402,855.01 and 171,152.27 is: 236,184.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    291,930.54 : 402,855.01 = 171,152.27 : x
  2. Step 2: Convert to fraction form
    291,930.54/402,855.01 = 171,152.27/x
  3. Step 3: Cross multiply
    291,930.54x = 402,855.01 × 171,152.27
  4. Step 4: Simplify right side
    291,930.54x = 68,949,549,442.37
  5. Step 5: Solve for x
    x = 68,949,549,442.37/291,930.54
  6. Step 6: Final answer
    x = 236,184.78

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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.