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Finding the Fourth Proportional to 161,804.88, 223,297.68 and 90,184.88

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Solution

The fourth proportional to 161,804.88, 223,297.68 and 90,184.88 is: 124,459.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    161,804.88 : 223,297.68 = 90,184.88 : x
  2. Step 2: Convert to fraction form
    161,804.88/223,297.68 = 90,184.88/x
  3. Step 3: Cross multiply
    161,804.88x = 223,297.68 × 90,184.88
  4. Step 4: Simplify right side
    161,804.88x = 20,138,074,475.08
  5. Step 5: Solve for x
    x = 20,138,074,475.08/161,804.88
  6. Step 6: Final answer
    x = 124,459.01

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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.