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Finding the Fourth Proportional to 190,141.68, 285,492.90 and 106,066.11

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Solution

The fourth proportional to 190,141.68, 285,492.90 and 106,066.11 is: 159,255.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    190,141.68 : 285,492.90 = 106,066.11 : x
  2. Step 2: Convert to fraction form
    190,141.68/285,492.90 = 106,066.11/x
  3. Step 3: Cross multiply
    190,141.68x = 285,492.90 × 106,066.11
  4. Step 4: Simplify right side
    190,141.68x = 30,281,121,335.62
  5. Step 5: Solve for x
    x = 30,281,121,335.62/190,141.68
  6. Step 6: Final answer
    x = 159,255.57

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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.