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Finding the Fourth Proportional to 157,362.48, 235,763.87 and 90,664.83

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Solution

The fourth proportional to 157,362.48, 235,763.87 and 90,664.83 is: 135,836.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,362.48 : 235,763.87 = 90,664.83 : x
  2. Step 2: Convert to fraction form
    157,362.48/235,763.87 = 90,664.83/x
  3. Step 3: Cross multiply
    157,362.48x = 235,763.87 × 90,664.83
  4. Step 4: Simplify right side
    157,362.48x = 21,375,490,740.37
  5. Step 5: Solve for x
    x = 21,375,490,740.37/157,362.48
  6. Step 6: Final answer
    x = 135,836.01

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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.