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Finding the Fourth Proportional to 92,987.30, 139,473.02 and 36,812.14

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Solution

The fourth proportional to 92,987.30, 139,473.02 and 36,812.14 is: 55,215.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,987.30 : 139,473.02 = 36,812.14 : x
  2. Step 2: Convert to fraction form
    92,987.30/139,473.02 = 36,812.14/x
  3. Step 3: Cross multiply
    92,987.30x = 139,473.02 × 36,812.14
  4. Step 4: Simplify right side
    92,987.30x = 5,134,300,338.46
  5. Step 5: Solve for x
    x = 5,134,300,338.46/92,987.30
  6. Step 6: Final answer
    x = 55,215.07

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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.