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Finding the Fourth Proportional to 119,015.46, 164,245.93 and 65,302.74

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Solution

The fourth proportional to 119,015.46, 164,245.93 and 65,302.74 is: 90,120.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    119,015.46 : 164,245.93 = 65,302.74 : x
  2. Step 2: Convert to fraction form
    119,015.46/164,245.93 = 65,302.74/x
  3. Step 3: Cross multiply
    119,015.46x = 164,245.93 × 65,302.74
  4. Step 4: Simplify right side
    119,015.46x = 10,725,709,099.59
  5. Step 5: Solve for x
    x = 10,725,709,099.59/119,015.46
  6. Step 6: Final answer
    x = 90,120.30

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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.