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Finding the Fourth Proportional to 92,598.74, 127,779.64 and 54,359.86

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Solution

The fourth proportional to 92,598.74, 127,779.64 and 54,359.86 is: 75,012.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,598.74 : 127,779.64 = 54,359.86 : x
  2. Step 2: Convert to fraction form
    92,598.74/127,779.64 = 54,359.86/x
  3. Step 3: Cross multiply
    92,598.74x = 127,779.64 × 54,359.86
  4. Step 4: Simplify right side
    92,598.74x = 6,946,083,341.25
  5. Step 5: Solve for x
    x = 6,946,083,341.25/92,598.74
  6. Step 6: Final answer
    x = 75,012.72

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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.