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Finding the Fourth Proportional to 119,515.93, 164,930.65 and 65,799.84

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Solution

The fourth proportional to 119,515.93, 164,930.65 and 65,799.84 is: 90,803.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    119,515.93 : 164,930.65 = 65,799.84 : x
  2. Step 2: Convert to fraction form
    119,515.93/164,930.65 = 65,799.84/x
  3. Step 3: Cross multiply
    119,515.93x = 164,930.65 × 65,799.84
  4. Step 4: Simplify right side
    119,515.93x = 10,852,410,381.10
  5. Step 5: Solve for x
    x = 10,852,410,381.10/119,515.93
  6. Step 6: Final answer
    x = 90,803.05

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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.