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Finding the Fourth Proportional to 157,427.20, 236,119.20 and 52,235.20

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Solution

The fourth proportional to 157,427.20, 236,119.20 and 52,235.20 is: 78,345.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,427.20 : 236,119.20 = 52,235.20 : x
  2. Step 2: Convert to fraction form
    157,427.20/236,119.20 = 52,235.20/x
  3. Step 3: Cross multiply
    157,427.20x = 236,119.20 × 52,235.20
  4. Step 4: Simplify right side
    157,427.20x = 12,333,733,635.84
  5. Step 5: Solve for x
    x = 12,333,733,635.84/157,427.20
  6. Step 6: Final answer
    x = 78,345.63

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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.