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Finding the Fourth Proportional to 157,418.61, 236,040.42 and 63,815.01

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Solution

The fourth proportional to 157,418.61, 236,040.42 and 63,815.01 is: 95,687.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,418.61 : 236,040.42 = 63,815.01 : x
  2. Step 2: Convert to fraction form
    157,418.61/236,040.42 = 63,815.01/x
  3. Step 3: Cross multiply
    157,418.61x = 236,040.42 × 63,815.01
  4. Step 4: Simplify right side
    157,418.61x = 15,062,921,762.70
  5. Step 5: Solve for x
    x = 15,062,921,762.70/157,418.61
  6. Step 6: Final answer
    x = 95,687.05

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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.