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Finding the Fourth Proportional to 93,745.68, 129,309.32 and 65,441.04

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Solution

The fourth proportional to 93,745.68, 129,309.32 and 65,441.04 is: 90,266.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,745.68 : 129,309.32 = 65,441.04 : x
  2. Step 2: Convert to fraction form
    93,745.68/129,309.32 = 65,441.04/x
  3. Step 3: Cross multiply
    93,745.68x = 129,309.32 × 65,441.04
  4. Step 4: Simplify right side
    93,745.68x = 8,462,136,382.49
  5. Step 5: Solve for x
    x = 8,462,136,382.49/93,745.68
  6. Step 6: Final answer
    x = 90,266.95

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.