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Finding the Fourth Proportional to 119,574.12, 165,012.48 and 65,859.24

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Solution

The fourth proportional to 119,574.12, 165,012.48 and 65,859.24 is: 90,885.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    119,574.12 : 165,012.48 = 65,859.24 : x
  2. Step 2: Convert to fraction form
    119,574.12/165,012.48 = 65,859.24/x
  3. Step 3: Cross multiply
    119,574.12x = 165,012.48 × 65,859.24
  4. Step 4: Simplify right side
    119,574.12x = 10,867,596,523.32
  5. Step 5: Solve for x
    x = 10,867,596,523.32/119,574.12
  6. Step 6: Final answer
    x = 90,885.86

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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.