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Finding the Fourth Proportional to 92,779.42, 127,956.63 and 64,552.54

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Solution

The fourth proportional to 92,779.42, 127,956.63 and 64,552.54 is: 89,027.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,779.42 : 127,956.63 = 64,552.54 : x
  2. Step 2: Convert to fraction form
    92,779.42/127,956.63 = 64,552.54/x
  3. Step 3: Cross multiply
    92,779.42x = 127,956.63 × 64,552.54
  4. Step 4: Simplify right side
    92,779.42x = 8,259,925,476.34
  5. Step 5: Solve for x
    x = 8,259,925,476.34/92,779.42
  6. Step 6: Final answer
    x = 89,027.56

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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.