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Finding the Fourth Proportional to 357,708.06, 536,228.55 and 120,885.12

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Solution

The fourth proportional to 357,708.06, 536,228.55 and 120,885.12 is: 181,214.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    357,708.06 : 536,228.55 = 120,885.12 : x
  2. Step 2: Convert to fraction form
    357,708.06/536,228.55 = 120,885.12/x
  3. Step 3: Cross multiply
    357,708.06x = 536,228.55 × 120,885.12
  4. Step 4: Simplify right side
    357,708.06x = 64,822,052,614.18
  5. Step 5: Solve for x
    x = 64,822,052,614.18/357,708.06
  6. Step 6: Final answer
    x = 181,214.96

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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.