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Finding the Fourth Proportional to 104,759.63, 144,565.51 and 57,011.95

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Solution

The fourth proportional to 104,759.63, 144,565.51 and 57,011.95 is: 78,674.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,759.63 : 144,565.51 = 57,011.95 : x
  2. Step 2: Convert to fraction form
    104,759.63/144,565.51 = 57,011.95/x
  3. Step 3: Cross multiply
    104,759.63x = 144,565.51 × 57,011.95
  4. Step 4: Simplify right side
    104,759.63x = 8,241,961,627.84
  5. Step 5: Solve for x
    x = 8,241,961,627.84/104,759.63
  6. Step 6: Final answer
    x = 78,674.98

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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.