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Finding the Fourth Proportional to 151,438.74, 226,866.96 and 84,676.38

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Solution

The fourth proportional to 151,438.74, 226,866.96 and 84,676.38 is: 126,851.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    151,438.74 : 226,866.96 = 84,676.38 : x
  2. Step 2: Convert to fraction form
    151,438.74/226,866.96 = 84,676.38/x
  3. Step 3: Cross multiply
    151,438.74x = 226,866.96 × 84,676.38
  4. Step 4: Simplify right side
    151,438.74x = 19,210,272,914.40
  5. Step 5: Solve for x
    x = 19,210,272,914.40/151,438.74
  6. Step 6: Final answer
    x = 126,851.77

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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.