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Finding the Fourth Proportional to 127,323.36, 191,062.80 and 64,998.72

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Solution

The fourth proportional to 127,323.36, 191,062.80 and 64,998.72 is: 97,537.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,323.36 : 191,062.80 = 64,998.72 : x
  2. Step 2: Convert to fraction form
    127,323.36/191,062.80 = 64,998.72/x
  3. Step 3: Cross multiply
    127,323.36x = 191,062.80 × 64,998.72
  4. Step 4: Simplify right side
    127,323.36x = 12,418,837,439.62
  5. Step 5: Solve for x
    x = 12,418,837,439.62/127,323.36
  6. Step 6: Final answer
    x = 97,537.78

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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.