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Finding the Fourth Proportional to 314,795.79, 472,126.37 and 90,095.90

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Solution

The fourth proportional to 314,795.79, 472,126.37 and 90,095.90 is: 135,124.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    314,795.79 : 472,126.37 = 90,095.90 : x
  2. Step 2: Convert to fraction form
    314,795.79/472,126.37 = 90,095.90/x
  3. Step 3: Cross multiply
    314,795.79x = 472,126.37 × 90,095.90
  4. Step 4: Simplify right side
    314,795.79x = 42,536,647,914.56
  5. Step 5: Solve for x
    x = 42,536,647,914.56/314,795.79
  6. Step 6: Final answer
    x = 135,124.58

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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.