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Finding the Fourth Proportional to 166,349, 229,567.29 and 90,902.36

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Solution

The fourth proportional to 166,349, 229,567.29 and 90,902.36 is: 125,448.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    166,349 : 229,567.29 = 90,902.36 : x
  2. Step 2: Convert to fraction form
    166,349/229,567.29 = 90,902.36/x
  3. Step 3: Cross multiply
    166,349x = 229,567.29 × 90,902.36
  4. Step 4: Simplify right side
    166,349x = 20,868,208,439.80
  5. Step 5: Solve for x
    x = 20,868,208,439.80/166,349
  6. Step 6: Final answer
    x = 125,448.36

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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.