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Finding the Fourth Proportional to 161,804.33, 223,291.01 and 90,188.90

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Solution

The fourth proportional to 161,804.33, 223,291.01 and 90,188.90 is: 124,461.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    161,804.33 : 223,291.01 = 90,188.90 : x
  2. Step 2: Convert to fraction form
    161,804.33/223,291.01 = 90,188.90/x
  3. Step 3: Cross multiply
    161,804.33x = 223,291.01 × 90,188.90
  4. Step 4: Simplify right side
    161,804.33x = 20,138,369,004.39
  5. Step 5: Solve for x
    x = 20,138,369,004.39/161,804.33
  6. Step 6: Final answer
    x = 124,461.25

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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.