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Finding the Fourth Proportional to 268,783.65, 370,921.50 and 147,924.90

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Solution

The fourth proportional to 268,783.65, 370,921.50 and 147,924.90 is: 204,136.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    268,783.65 : 370,921.50 = 147,924.90 : x
  2. Step 2: Convert to fraction form
    268,783.65/370,921.50 = 147,924.90/x
  3. Step 3: Cross multiply
    268,783.65x = 370,921.50 × 147,924.90
  4. Step 4: Simplify right side
    268,783.65x = 54,868,525,795.35
  5. Step 5: Solve for x
    x = 54,868,525,795.35/268,783.65
  6. Step 6: Final answer
    x = 204,136.40

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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.