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Finding the Fourth Proportional to 216,696.90, 299,034.49 and 119,900.94

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Solution

The fourth proportional to 216,696.90, 299,034.49 and 119,900.94 is: 165,459.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    216,696.90 : 299,034.49 = 119,900.94 : x
  2. Step 2: Convert to fraction form
    216,696.90/299,034.49 = 119,900.94/x
  3. Step 3: Cross multiply
    216,696.90x = 299,034.49 × 119,900.94
  4. Step 4: Simplify right side
    216,696.90x = 35,854,516,443.42
  5. Step 5: Solve for x
    x = 35,854,516,443.42/216,696.90
  6. Step 6: Final answer
    x = 165,459.30

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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.