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Finding the Fourth Proportional to 167,266.47, 230,825.76 and 90,785.70

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Solution

The fourth proportional to 167,266.47, 230,825.76 and 90,785.70 is: 125,283.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    167,266.47 : 230,825.76 = 90,785.70 : x
  2. Step 2: Convert to fraction form
    167,266.47/230,825.76 = 90,785.70/x
  3. Step 3: Cross multiply
    167,266.47x = 230,825.76 × 90,785.70
  4. Step 4: Simplify right side
    167,266.47x = 20,955,678,199.63
  5. Step 5: Solve for x
    x = 20,955,678,199.63/167,266.47
  6. Step 6: Final answer
    x = 125,283.20

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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.