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Finding the Fourth Proportional to 92,394.81, 138,707.01 and 64,492.32

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Solution

The fourth proportional to 92,394.81, 138,707.01 and 64,492.32 is: 96,818.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,394.81 : 138,707.01 = 64,492.32 : x
  2. Step 2: Convert to fraction form
    92,394.81/138,707.01 = 64,492.32/x
  3. Step 3: Cross multiply
    92,394.81x = 138,707.01 × 64,492.32
  4. Step 4: Simplify right side
    92,394.81x = 8,945,536,875.16
  5. Step 5: Solve for x
    x = 8,945,536,875.16/92,394.81
  6. Step 6: Final answer
    x = 96,818.61

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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.