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Finding the Fourth Proportional to 242,931.35, 335,246.49 and 134,039.45

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Solution

The fourth proportional to 242,931.35, 335,246.49 and 134,039.45 is: 184,975.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    242,931.35 : 335,246.49 = 134,039.45 : x
  2. Step 2: Convert to fraction form
    242,931.35/335,246.49 = 134,039.45/x
  3. Step 3: Cross multiply
    242,931.35x = 335,246.49 × 134,039.45
  4. Step 4: Simplify right side
    242,931.35x = 44,936,253,457.80
  5. Step 5: Solve for x
    x = 44,936,253,457.80/242,931.35
  6. Step 6: Final answer
    x = 184,975.11

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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.