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Finding the Fourth Proportional to 93,271.20, 139,926.80 and 30,094.94

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Solution

The fourth proportional to 93,271.20, 139,926.80 and 30,094.94 is: 45,148.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,271.20 : 139,926.80 = 30,094.94 : x
  2. Step 2: Convert to fraction form
    93,271.20/139,926.80 = 30,094.94/x
  3. Step 3: Cross multiply
    93,271.20x = 139,926.80 × 30,094.94
  4. Step 4: Simplify right side
    93,271.20x = 4,211,088,499.92
  5. Step 5: Solve for x
    x = 4,211,088,499.92/93,271.20
  6. Step 6: Final answer
    x = 45,148.86

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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.