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Finding the Fourth Proportional to 92,307.96, 138,485.32 and 25,748.08

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Solution

The fourth proportional to 92,307.96, 138,485.32 and 25,748.08 is: 38,628.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,307.96 : 138,485.32 = 25,748.08 : x
  2. Step 2: Convert to fraction form
    92,307.96/138,485.32 = 25,748.08/x
  3. Step 3: Cross multiply
    92,307.96x = 138,485.32 × 25,748.08
  4. Step 4: Simplify right side
    92,307.96x = 3,565,731,098.19
  5. Step 5: Solve for x
    x = 3,565,731,098.19/92,307.96
  6. Step 6: Final answer
    x = 38,628.64

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.