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Finding the Fourth Proportional to 92,830.61, 127,876.64 and 79,174.01

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Solution

The fourth proportional to 92,830.61, 127,876.64 and 79,174.01 is: 109,064.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,830.61 : 127,876.64 = 79,174.01 : x
  2. Step 2: Convert to fraction form
    92,830.61/127,876.64 = 79,174.01/x
  3. Step 3: Cross multiply
    92,830.61x = 127,876.64 × 79,174.01
  4. Step 4: Simplify right side
    92,830.61x = 10,124,505,338.87
  5. Step 5: Solve for x
    x = 10,124,505,338.87/92,830.61
  6. Step 6: Final answer
    x = 109,064.30

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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.