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Finding the Fourth Proportional to 96,645.76, 133,309.80 and 69,827.67

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Solution

The fourth proportional to 96,645.76, 133,309.80 and 69,827.67 is: 96,317.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    96,645.76 : 133,309.80 = 69,827.67 : x
  2. Step 2: Convert to fraction form
    96,645.76/133,309.80 = 69,827.67/x
  3. Step 3: Cross multiply
    96,645.76x = 133,309.80 × 69,827.67
  4. Step 4: Simplify right side
    96,645.76x = 9,308,712,722.17
  5. Step 5: Solve for x
    x = 9,308,712,722.17/96,645.76
  6. Step 6: Final answer
    x = 96,317.86

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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.