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Finding the Fourth Proportional to 191,394.76, 286,995.60 and 111,458.56

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Solution

The fourth proportional to 191,394.76, 286,995.60 and 111,458.56 is: 167,131.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    191,394.76 : 286,995.60 = 111,458.56 : x
  2. Step 2: Convert to fraction form
    191,394.76/286,995.60 = 111,458.56/x
  3. Step 3: Cross multiply
    191,394.76x = 286,995.60 × 111,458.56
  4. Step 4: Simplify right side
    191,394.76x = 31,988,116,302.34
  5. Step 5: Solve for x
    x = 31,988,116,302.34/191,394.76
  6. Step 6: Final answer
    x = 167,131.62

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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.