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Finding the Fourth Proportional to 161,804.26, 223,290.92 and 90,188.82

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Solution

The fourth proportional to 161,804.26, 223,290.92 and 90,188.82 is: 124,461.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    161,804.26 : 223,290.92 = 90,188.82 : x
  2. Step 2: Convert to fraction form
    161,804.26/223,290.92 = 90,188.82/x
  3. Step 3: Cross multiply
    161,804.26x = 223,290.92 × 90,188.82
  4. Step 4: Simplify right side
    161,804.26x = 20,138,344,591.51
  5. Step 5: Solve for x
    x = 20,138,344,591.51/161,804.26
  6. Step 6: Final answer
    x = 124,461.15

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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.