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Finding the Fourth Proportional to 92,696.72, 127,911.90 and 56,888.24

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Solution

The fourth proportional to 92,696.72, 127,911.90 and 56,888.24 is: 78,499.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,696.72 : 127,911.90 = 56,888.24 : x
  2. Step 2: Convert to fraction form
    92,696.72/127,911.90 = 56,888.24/x
  3. Step 3: Cross multiply
    92,696.72x = 127,911.90 × 56,888.24
  4. Step 4: Simplify right side
    92,696.72x = 7,276,682,866.06
  5. Step 5: Solve for x
    x = 7,276,682,866.06/92,696.72
  6. Step 6: Final answer
    x = 78,499.90

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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.