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Finding the Fourth Proportional to 153,314.37, 211,392.79 and 104,939.62

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Solution

The fourth proportional to 153,314.37, 211,392.79 and 104,939.62 is: 144,692.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    153,314.37 : 211,392.79 = 104,939.62 : x
  2. Step 2: Convert to fraction form
    153,314.37/211,392.79 = 104,939.62/x
  3. Step 3: Cross multiply
    153,314.37x = 211,392.79 × 104,939.62
  4. Step 4: Simplify right side
    153,314.37x = 22,183,478,262.51
  5. Step 5: Solve for x
    x = 22,183,478,262.51/153,314.37
  6. Step 6: Final answer
    x = 144,692.75

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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.