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Finding the Fourth Proportional to 338,937.51, 508,092.35 and 125,586.55

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Solution

The fourth proportional to 338,937.51, 508,092.35 and 125,586.55 is: 188,263.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    338,937.51 : 508,092.35 = 125,586.55 : x
  2. Step 2: Convert to fraction form
    338,937.51/508,092.35 = 125,586.55/x
  3. Step 3: Cross multiply
    338,937.51x = 508,092.35 × 125,586.55
  4. Step 4: Simplify right side
    338,937.51x = 63,809,565,325.08
  5. Step 5: Solve for x
    x = 63,809,565,325.08/338,937.51
  6. Step 6: Final answer
    x = 188,263.51

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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.