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Finding the Fourth Proportional to 157,548.90, 236,438.55 and 104,940.90

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Solution

The fourth proportional to 157,548.90, 236,438.55 and 104,940.90 is: 157,488.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,548.90 : 236,438.55 = 104,940.90 : x
  2. Step 2: Convert to fraction form
    157,548.90/236,438.55 = 104,940.90/x
  3. Step 3: Cross multiply
    157,548.90x = 236,438.55 × 104,940.90
  4. Step 4: Simplify right side
    157,548.90x = 24,812,074,231.70
  5. Step 5: Solve for x
    x = 24,812,074,231.70/157,548.90
  6. Step 6: Final answer
    x = 157,488.08

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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.