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Finding the Fourth Proportional to 267,707.66, 401,539.62 and 90,210.74

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Solution

The fourth proportional to 267,707.66, 401,539.62 and 90,210.74 is: 135,308.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    267,707.66 : 401,539.62 = 90,210.74 : x
  2. Step 2: Convert to fraction form
    267,707.66/401,539.62 = 90,210.74/x
  3. Step 3: Cross multiply
    267,707.66x = 401,539.62 × 90,210.74
  4. Step 4: Simplify right side
    267,707.66x = 36,223,186,259.52
  5. Step 5: Solve for x
    x = 36,223,186,259.52/267,707.66
  6. Step 6: Final answer
    x = 135,308.74

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.