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Finding the Fourth Proportional to 93,241.68, 128,690.16 and 54,998.88

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Solution

The fourth proportional to 93,241.68, 128,690.16 and 54,998.88 is: 75,908.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,241.68 : 128,690.16 = 54,998.88 : x
  2. Step 2: Convert to fraction form
    93,241.68/128,690.16 = 54,998.88/x
  3. Step 3: Cross multiply
    93,241.68x = 128,690.16 × 54,998.88
  4. Step 4: Simplify right side
    93,241.68x = 7,077,814,667.02
  5. Step 5: Solve for x
    x = 7,077,814,667.02/93,241.68
  6. Step 6: Final answer
    x = 75,908.27

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1.5x scale

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.