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Finding the Fourth Proportional to 92,349.67, 138,528.65 and 28,303.11

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Solution

The fourth proportional to 92,349.67, 138,528.65 and 28,303.11 is: 42,455.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,349.67 : 138,528.65 = 28,303.11 : x
  2. Step 2: Convert to fraction form
    92,349.67/138,528.65 = 28,303.11/x
  3. Step 3: Cross multiply
    92,349.67x = 138,528.65 × 28,303.11
  4. Step 4: Simplify right side
    92,349.67x = 3,920,791,619.10
  5. Step 5: Solve for x
    x = 3,920,791,619.10/92,349.67
  6. Step 6: Final answer
    x = 42,455.94

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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.