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Finding the Fourth Proportional to 92,799.62, 128,065.95 and 50,358.18

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Solution

The fourth proportional to 92,799.62, 128,065.95 and 50,358.18 is: 69,495.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,799.62 : 128,065.95 = 50,358.18 : x
  2. Step 2: Convert to fraction form
    92,799.62/128,065.95 = 50,358.18/x
  3. Step 3: Cross multiply
    92,799.62x = 128,065.95 × 50,358.18
  4. Step 4: Simplify right side
    92,799.62x = 6,449,168,161.97
  5. Step 5: Solve for x
    x = 6,449,168,161.97/92,799.62
  6. Step 6: Final answer
    x = 69,495.63

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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.