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Finding the Fourth Proportional to 191,892.80, 264,785.28 and 111,326.96

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Solution

The fourth proportional to 191,892.80, 264,785.28 and 111,326.96 is: 153,615.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    191,892.80 : 264,785.28 = 111,326.96 : x
  2. Step 2: Convert to fraction form
    191,892.80/264,785.28 = 111,326.96/x
  3. Step 3: Cross multiply
    191,892.80x = 264,785.28 × 111,326.96
  4. Step 4: Simplify right side
    191,892.80x = 29,477,740,275.15
  5. Step 5: Solve for x
    x = 29,477,740,275.15/191,892.80
  6. Step 6: Final answer
    x = 153,615.67

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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.