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Finding the Fourth Proportional to 93,043.96, 139,502.73 and 47,339.32

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Solution

The fourth proportional to 93,043.96, 139,502.73 and 47,339.32 is: 70,976.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,043.96 : 139,502.73 = 47,339.32 : x
  2. Step 2: Convert to fraction form
    93,043.96/139,502.73 = 47,339.32/x
  3. Step 3: Cross multiply
    93,043.96x = 139,502.73 × 47,339.32
  4. Step 4: Simplify right side
    93,043.96x = 6,603,964,376.34
  5. Step 5: Solve for x
    x = 6,603,964,376.34/93,043.96
  6. Step 6: Final answer
    x = 70,976.82

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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.