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Finding the Fourth Proportional to 93,165.44, 139,728.53 and 29,991.20

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Solution

The fourth proportional to 93,165.44, 139,728.53 and 29,991.20 is: 44,980.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,165.44 : 139,728.53 = 29,991.20 : x
  2. Step 2: Convert to fraction form
    93,165.44/139,728.53 = 29,991.20/x
  3. Step 3: Cross multiply
    93,165.44x = 139,728.53 × 29,991.20
  4. Step 4: Simplify right side
    93,165.44x = 4,190,626,363.91
  5. Step 5: Solve for x
    x = 4,190,626,363.91/93,165.44
  6. Step 6: Final answer
    x = 44,980.48

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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.