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Finding the Fourth Proportional to 93,012.90, 139,511.85 and 29,816.09

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Solution

The fourth proportional to 93,012.90, 139,511.85 and 29,816.09 is: 44,721.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,012.90 : 139,511.85 = 29,816.09 : x
  2. Step 2: Convert to fraction form
    93,012.90/139,511.85 = 29,816.09/x
  3. Step 3: Cross multiply
    93,012.90x = 139,511.85 × 29,816.09
  4. Step 4: Simplify right side
    93,012.90x = 4,159,697,875.67
  5. Step 5: Solve for x
    x = 4,159,697,875.67/93,012.90
  6. Step 6: Final answer
    x = 44,721.73

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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.