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Finding the Fourth Proportional to 243,703.49, 365,532.08 and 75,178.53

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Solution

The fourth proportional to 243,703.49, 365,532.08 and 75,178.53 is: 112,760.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    243,703.49 : 365,532.08 = 75,178.53 : x
  2. Step 2: Convert to fraction form
    243,703.49/365,532.08 = 75,178.53/x
  3. Step 3: Cross multiply
    243,703.49x = 365,532.08 × 75,178.53
  4. Step 4: Simplify right side
    243,703.49x = 27,480,164,066.35
  5. Step 5: Solve for x
    x = 27,480,164,066.35/243,703.49
  6. Step 6: Final answer
    x = 112,760.65

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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.