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Finding the Fourth Proportional to 92,799.54, 128,063.72 and 50,358.08

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Solution

The fourth proportional to 92,799.54, 128,063.72 and 50,358.08 is: 69,494.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,799.54 : 128,063.72 = 50,358.08 : x
  2. Step 2: Convert to fraction form
    92,799.54/128,063.72 = 50,358.08/x
  3. Step 3: Cross multiply
    92,799.54x = 128,063.72 × 50,358.08
  4. Step 4: Simplify right side
    92,799.54x = 6,449,043,056.86
  5. Step 5: Solve for x
    x = 6,449,043,056.86/92,799.54
  6. Step 6: Final answer
    x = 69,494.34

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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.