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Finding the Fourth Proportional to 105,866.04, 158,697.98 and 39,288.36

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Solution

The fourth proportional to 105,866.04, 158,697.98 and 39,288.36 is: 58,895.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,866.04 : 158,697.98 = 39,288.36 : x
  2. Step 2: Convert to fraction form
    105,866.04/158,697.98 = 39,288.36/x
  3. Step 3: Cross multiply
    105,866.04x = 158,697.98 × 39,288.36
  4. Step 4: Simplify right side
    105,866.04x = 6,234,983,369.51
  5. Step 5: Solve for x
    x = 6,234,983,369.51/105,866.04
  6. Step 6: Final answer
    x = 58,895.03

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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.