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Finding the Fourth Proportional to 170,678.84, 256,018.39 and 58,359.91

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Solution

The fourth proportional to 170,678.84, 256,018.39 and 58,359.91 is: 87,539.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    170,678.84 : 256,018.39 = 58,359.91 : x
  2. Step 2: Convert to fraction form
    170,678.84/256,018.39 = 58,359.91/x
  3. Step 3: Cross multiply
    170,678.84x = 256,018.39 × 58,359.91
  4. Step 4: Simplify right side
    170,678.84x = 14,941,208,918.65
  5. Step 5: Solve for x
    x = 14,941,208,918.65/170,678.84
  6. Step 6: Final answer
    x = 87,539.90

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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.