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Finding the Fourth Proportional to 161,897.22, 223,422.12 and 90,276.54

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Solution

The fourth proportional to 161,897.22, 223,422.12 and 90,276.54 is: 124,583.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    161,897.22 : 223,422.12 = 90,276.54 : x
  2. Step 2: Convert to fraction form
    161,897.22/223,422.12 = 90,276.54/x
  3. Step 3: Cross multiply
    161,897.22x = 223,422.12 × 90,276.54
  4. Step 4: Simplify right side
    161,897.22x = 20,169,775,953.06
  5. Step 5: Solve for x
    x = 20,169,775,953.06/161,897.22
  6. Step 6: Final answer
    x = 124,583.83

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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.