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Finding the Fourth Proportional to 92,663.29, 127,779.83 and 79,278.85

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Solution

The fourth proportional to 92,663.29, 127,779.83 and 79,278.85 is: 109,323.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,663.29 : 127,779.83 = 79,278.85 : x
  2. Step 2: Convert to fraction form
    92,663.29/127,779.83 = 79,278.85/x
  3. Step 3: Cross multiply
    92,663.29x = 127,779.83 × 79,278.85
  4. Step 4: Simplify right side
    92,663.29x = 10,130,238,036.22
  5. Step 5: Solve for x
    x = 10,130,238,036.22/92,663.29
  6. Step 6: Final answer
    x = 109,323.10

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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.