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Finding the Fourth Proportional to 250,980.64, 346,353.72 and 136,259.43

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Solution

The fourth proportional to 250,980.64, 346,353.72 and 136,259.43 is: 188,038.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    250,980.64 : 346,353.72 = 136,259.43 : x
  2. Step 2: Convert to fraction form
    250,980.64/346,353.72 = 136,259.43/x
  3. Step 3: Cross multiply
    250,980.64x = 346,353.72 × 136,259.43
  4. Step 4: Simplify right side
    250,980.64x = 47,193,961,370.48
  5. Step 5: Solve for x
    x = 47,193,961,370.48/250,980.64
  6. Step 6: Final answer
    x = 188,038.25

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.