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Finding the Fourth Proportional to 119,317.15, 164,656.19 and 65,601.70

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Solution

The fourth proportional to 119,317.15, 164,656.19 and 65,601.70 is: 90,529.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    119,317.15 : 164,656.19 = 65,601.70 : x
  2. Step 2: Convert to fraction form
    119,317.15/164,656.19 = 65,601.70/x
  3. Step 3: Cross multiply
    119,317.15x = 164,656.19 × 65,601.70
  4. Step 4: Simplify right side
    119,317.15x = 10,801,725,731.89
  5. Step 5: Solve for x
    x = 10,801,725,731.89/119,317.15
  6. Step 6: Final answer
    x = 90,529.53

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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.