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Finding the Fourth Proportional to 78,585.84, 108,457.68 and 44,136.22

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Solution

The fourth proportional to 78,585.84, 108,457.68 and 44,136.22 is: 60,913.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,585.84 : 108,457.68 = 44,136.22 : x
  2. Step 2: Convert to fraction form
    78,585.84/108,457.68 = 44,136.22/x
  3. Step 3: Cross multiply
    78,585.84x = 108,457.68 × 44,136.22
  4. Step 4: Simplify right side
    78,585.84x = 4,786,912,025.17
  5. Step 5: Solve for x
    x = 4,786,912,025.17/78,585.84
  6. Step 6: Final answer
    x = 60,913.16

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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.