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Finding the Fourth Proportional to 89,955.65, 124,136.42 and 49,668.54

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Solution

The fourth proportional to 89,955.65, 124,136.42 and 49,668.54 is: 68,541.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,955.65 : 124,136.42 = 49,668.54 : x
  2. Step 2: Convert to fraction form
    89,955.65/124,136.42 = 49,668.54/x
  3. Step 3: Cross multiply
    89,955.65x = 124,136.42 × 49,668.54
  4. Step 4: Simplify right side
    89,955.65x = 6,165,674,742.23
  5. Step 5: Solve for x
    x = 6,165,674,742.23/89,955.65
  6. Step 6: Final answer
    x = 68,541.27

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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.