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Finding the Fourth Proportional to 93,132.90, 139,601.53 and 45,682.29

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Solution

The fourth proportional to 93,132.90, 139,601.53 and 45,682.29 is: 68,475.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,132.90 : 139,601.53 = 45,682.29 : x
  2. Step 2: Convert to fraction form
    93,132.90/139,601.53 = 45,682.29/x
  3. Step 3: Cross multiply
    93,132.90x = 139,601.53 × 45,682.29
  4. Step 4: Simplify right side
    93,132.90x = 6,377,317,463.70
  5. Step 5: Solve for x
    x = 6,377,317,463.70/93,132.90
  6. Step 6: Final answer
    x = 68,475.45

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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.