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Finding the Fourth Proportional to 92,155.08, 138,251.07 and 28,991.10

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Solution

The fourth proportional to 92,155.08, 138,251.07 and 28,991.10 is: 43,492.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,155.08 : 138,251.07 = 28,991.10 : x
  2. Step 2: Convert to fraction form
    92,155.08/138,251.07 = 28,991.10/x
  3. Step 3: Cross multiply
    92,155.08x = 138,251.07 × 28,991.10
  4. Step 4: Simplify right side
    92,155.08x = 4,008,050,077.04
  5. Step 5: Solve for x
    x = 4,008,050,077.04/92,155.08
  6. Step 6: Final answer
    x = 43,492.45

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1.5x scale

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.