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Finding the Fourth Proportional to 364,616.64, 546,921.72 and 127,903.86

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Solution

The fourth proportional to 364,616.64, 546,921.72 and 127,903.86 is: 191,854.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    364,616.64 : 546,921.72 = 127,903.86 : x
  2. Step 2: Convert to fraction form
    364,616.64/546,921.72 = 127,903.86/x
  3. Step 3: Cross multiply
    364,616.64x = 546,921.72 × 127,903.86
  4. Step 4: Simplify right side
    364,616.64x = 69,953,399,105.84
  5. Step 5: Solve for x
    x = 69,953,399,105.84/364,616.64
  6. Step 6: Final answer
    x = 191,854.65

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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.