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Finding the Fourth Proportional to 191,889.22, 264,808.65 and 111,364.78

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Solution

The fourth proportional to 191,889.22, 264,808.65 and 111,364.78 is: 153,684.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    191,889.22 : 264,808.65 = 111,364.78 : x
  2. Step 2: Convert to fraction form
    191,889.22/264,808.65 = 111,364.78/x
  3. Step 3: Cross multiply
    191,889.22x = 264,808.65 × 111,364.78
  4. Step 4: Simplify right side
    191,889.22x = 29,490,357,049.35
  5. Step 5: Solve for x
    x = 29,490,357,049.35/191,889.22
  6. Step 6: Final answer
    x = 153,684.28

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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.