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Finding the Fourth Proportional to 104,698.32, 144,484.80 and 56,951.79

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Solution

The fourth proportional to 104,698.32, 144,484.80 and 56,951.79 is: 78,594.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,698.32 : 144,484.80 = 56,951.79 : x
  2. Step 2: Convert to fraction form
    104,698.32/144,484.80 = 56,951.79/x
  3. Step 3: Cross multiply
    104,698.32x = 144,484.80 × 56,951.79
  4. Step 4: Simplify right side
    104,698.32x = 8,228,667,987.79
  5. Step 5: Solve for x
    x = 8,228,667,987.79/104,698.32
  6. Step 6: Final answer
    x = 78,594.08

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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.