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Finding the Fourth Proportional to 268,683.88, 370,783.74 and 147,822.60

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Solution

The fourth proportional to 268,683.88, 370,783.74 and 147,822.60 is: 203,995.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    268,683.88 : 370,783.74 = 147,822.60 : x
  2. Step 2: Convert to fraction form
    268,683.88/370,783.74 = 147,822.60/x
  3. Step 3: Cross multiply
    268,683.88x = 370,783.74 × 147,822.60
  4. Step 4: Simplify right side
    268,683.88x = 54,810,216,484.52
  5. Step 5: Solve for x
    x = 54,810,216,484.52/268,683.88
  6. Step 6: Final answer
    x = 203,995.18

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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.