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Finding the Fourth Proportional to 295,093.10, 442,420.95 and 126,475.40

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Solution

The fourth proportional to 295,093.10, 442,420.95 and 126,475.40 is: 189,619.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    295,093.10 : 442,420.95 = 126,475.40 : x
  2. Step 2: Convert to fraction form
    295,093.10/442,420.95 = 126,475.40/x
  3. Step 3: Cross multiply
    295,093.10x = 442,420.95 × 126,475.40
  4. Step 4: Simplify right side
    295,093.10x = 55,955,366,619.63
  5. Step 5: Solve for x
    x = 55,955,366,619.63/295,093.10
  6. Step 6: Final answer
    x = 189,619.37

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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.