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Finding the Fourth Proportional to 92,881.01, 128,174.64 and 50,439.84

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Solution

The fourth proportional to 92,881.01, 128,174.64 and 50,439.84 is: 69,606.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,881.01 : 128,174.64 = 50,439.84 : x
  2. Step 2: Convert to fraction form
    92,881.01/128,174.64 = 50,439.84/x
  3. Step 3: Cross multiply
    92,881.01x = 128,174.64 × 50,439.84
  4. Step 4: Simplify right side
    92,881.01x = 6,465,108,333.66
  5. Step 5: Solve for x
    x = 6,465,108,333.66/92,881.01
  6. Step 6: Final answer
    x = 69,606.36

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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.