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Finding the Fourth Proportional to 157,443.40, 236,165.10 and 151,319.80

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Solution

The fourth proportional to 157,443.40, 236,165.10 and 151,319.80 is: 226,979.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,443.40 : 236,165.10 = 151,319.80 : x
  2. Step 2: Convert to fraction form
    157,443.40/236,165.10 = 151,319.80/x
  3. Step 3: Cross multiply
    157,443.40x = 236,165.10 × 151,319.80
  4. Step 4: Simplify right side
    157,443.40x = 35,736,455,698.98
  5. Step 5: Solve for x
    x = 35,736,455,698.98/157,443.40
  6. Step 6: Final answer
    x = 226,979.70

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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.