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Finding the Fourth Proportional to 93,002.70, 139,502.22 and 30,673.20

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Solution

The fourth proportional to 93,002.70, 139,502.22 and 30,673.20 is: 46,009.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,002.70 : 139,502.22 = 30,673.20 : x
  2. Step 2: Convert to fraction form
    93,002.70/139,502.22 = 30,673.20/x
  3. Step 3: Cross multiply
    93,002.70x = 139,502.22 × 30,673.20
  4. Step 4: Simplify right side
    93,002.70x = 4,278,979,494.50
  5. Step 5: Solve for x
    x = 4,278,979,494.50/93,002.70
  6. Step 6: Final answer
    x = 46,009.20

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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.