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Finding the Fourth Proportional to 114,631.80, 171,619.65 and 101,509.80

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Solution

The fourth proportional to 114,631.80, 171,619.65 and 101,509.80 is: 151,974.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    114,631.80 : 171,619.65 = 101,509.80 : x
  2. Step 2: Convert to fraction form
    114,631.80/171,619.65 = 101,509.80/x
  3. Step 3: Cross multiply
    114,631.80x = 171,619.65 × 101,509.80
  4. Step 4: Simplify right side
    114,631.80x = 17,421,076,347.57
  5. Step 5: Solve for x
    x = 17,421,076,347.57/114,631.80
  6. Step 6: Final answer
    x = 151,974.20

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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.