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Finding the Fourth Proportional to 114,999.80, 158,699.46 and 64,698.80

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Solution

The fourth proportional to 114,999.80, 158,699.46 and 64,698.80 is: 89,284.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    114,999.80 : 158,699.46 = 64,698.80 : x
  2. Step 2: Convert to fraction form
    114,999.80/158,699.46 = 64,698.80/x
  3. Step 3: Cross multiply
    114,999.80x = 158,699.46 × 64,698.80
  4. Step 4: Simplify right side
    114,999.80x = 10,267,664,622.65
  5. Step 5: Solve for x
    x = 10,267,664,622.65/114,999.80
  6. Step 6: Final answer
    x = 89,284.20

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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.