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Finding the Fourth Proportional to 167,319.30, 230,900.93 and 90,838.50

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Solution

The fourth proportional to 167,319.30, 230,900.93 and 90,838.50 is: 125,357.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    167,319.30 : 230,900.93 = 90,838.50 : x
  2. Step 2: Convert to fraction form
    167,319.30/230,900.93 = 90,838.50/x
  3. Step 3: Cross multiply
    167,319.30x = 230,900.93 × 90,838.50
  4. Step 4: Simplify right side
    167,319.30x = 20,974,693,150.38
  5. Step 5: Solve for x
    x = 20,974,693,150.38/167,319.30
  6. Step 6: Final answer
    x = 125,357.28

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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.