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Finding the Fourth Proportional to 92,900.48, 128,202.48 and 50,458.91

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Solution

The fourth proportional to 92,900.48, 128,202.48 and 50,458.91 is: 69,633.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,900.48 : 128,202.48 = 50,458.91 : x
  2. Step 2: Convert to fraction form
    92,900.48/128,202.48 = 50,458.91/x
  3. Step 3: Cross multiply
    92,900.48x = 128,202.48 × 50,458.91
  4. Step 4: Simplify right side
    92,900.48x = 6,468,956,759.08
  5. Step 5: Solve for x
    x = 6,468,956,759.08/92,900.48
  6. Step 6: Final answer
    x = 69,633.19

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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.