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Finding the Fourth Proportional to 291,725.64, 402,639.12 and 184,241.88

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Solution

The fourth proportional to 291,725.64, 402,639.12 and 184,241.88 is: 254,290.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    291,725.64 : 402,639.12 = 184,241.88 : x
  2. Step 2: Convert to fraction form
    291,725.64/402,639.12 = 184,241.88/x
  3. Step 3: Cross multiply
    291,725.64x = 402,639.12 × 184,241.88
  4. Step 4: Simplify right side
    291,725.64x = 74,182,988,430.35
  5. Step 5: Solve for x
    x = 74,182,988,430.35/291,725.64
  6. Step 6: Final answer
    x = 254,290.26

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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.