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Finding the Fourth Proportional to 347,784.84, 479,935.86 and 188,808.84

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Solution

The fourth proportional to 347,784.84, 479,935.86 and 188,808.84 is: 260,552.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    347,784.84 : 479,935.86 = 188,808.84 : x
  2. Step 2: Convert to fraction form
    347,784.84/479,935.86 = 188,808.84/x
  3. Step 3: Cross multiply
    347,784.84x = 479,935.86 × 188,808.84
  4. Step 4: Simplify right side
    347,784.84x = 90,616,133,001.00
  5. Step 5: Solve for x
    x = 90,616,133,001.00/347,784.84
  6. Step 6: Final answer
    x = 260,552.28

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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.