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Finding the Fourth Proportional to 265,539.95, 398,309.52 and 123,307.44

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Solution

The fourth proportional to 265,539.95, 398,309.52 and 123,307.44 is: 184,960.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    265,539.95 : 398,309.52 = 123,307.44 : x
  2. Step 2: Convert to fraction form
    265,539.95/398,309.52 = 123,307.44/x
  3. Step 3: Cross multiply
    265,539.95x = 398,309.52 × 123,307.44
  4. Step 4: Simplify right side
    265,539.95x = 49,114,527,238.83
  5. Step 5: Solve for x
    x = 49,114,527,238.83/265,539.95
  6. Step 6: Final answer
    x = 184,960.98

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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.