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Finding the Fourth Proportional to 194,477.60, 291,255.60 and 131,808.80

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Solution

The fourth proportional to 194,477.60, 291,255.60 and 131,808.80 is: 197,400.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    194,477.60 : 291,255.60 = 131,808.80 : x
  2. Step 2: Convert to fraction form
    194,477.60/291,255.60 = 131,808.80/x
  3. Step 3: Cross multiply
    194,477.60x = 291,255.60 × 131,808.80
  4. Step 4: Simplify right side
    194,477.60x = 38,390,051,129.28
  5. Step 5: Solve for x
    x = 38,390,051,129.28/194,477.60
  6. Step 6: Final answer
    x = 197,400.89

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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.