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Finding the Fourth Proportional to 58,114.76, 87,172.14 and 40,618.76

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Solution

The fourth proportional to 58,114.76, 87,172.14 and 40,618.76 is: 60,928.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    58,114.76 : 87,172.14 = 40,618.76 : x
  2. Step 2: Convert to fraction form
    58,114.76/87,172.14 = 40,618.76/x
  3. Step 3: Cross multiply
    58,114.76x = 87,172.14 × 40,618.76
  4. Step 4: Simplify right side
    58,114.76x = 3,540,824,233.35
  5. Step 5: Solve for x
    x = 3,540,824,233.35/58,114.76
  6. Step 6: Final answer
    x = 60,928.14

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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.