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Finding the Fourth Proportional to 245,648.76, 368,671.74 and 127,353.93

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Solution

The fourth proportional to 245,648.76, 368,671.74 and 127,353.93 is: 191,133.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    245,648.76 : 368,671.74 = 127,353.93 : x
  2. Step 2: Convert to fraction form
    245,648.76/368,671.74 = 127,353.93/x
  3. Step 3: Cross multiply
    245,648.76x = 368,671.74 × 127,353.93
  4. Step 4: Simplify right side
    245,648.76x = 46,951,794,968.94
  5. Step 5: Solve for x
    x = 46,951,794,968.94/245,648.76
  6. Step 6: Final answer
    x = 191,133.86

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1.5x scale

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.