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Finding the Fourth Proportional to 242,648.67, 334,857.60 and 133,756.88

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Solution

The fourth proportional to 242,648.67, 334,857.60 and 133,756.88 is: 184,585.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    242,648.67 : 334,857.60 = 133,756.88 : x
  2. Step 2: Convert to fraction form
    242,648.67/334,857.60 = 133,756.88/x
  3. Step 3: Cross multiply
    242,648.67x = 334,857.60 × 133,756.88
  4. Step 4: Simplify right side
    242,648.67x = 44,789,506,146
  5. Step 5: Solve for x
    x = 44,789,506,146/242,648.67
  6. Step 6: Final answer
    x = 184,585.83

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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.