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Finding the Fourth Proportional to 268,387.65, 370,370.79 and 147,526.36

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Solution

The fourth proportional to 268,387.65, 370,370.79 and 147,526.36 is: 203,584.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    268,387.65 : 370,370.79 = 147,526.36 : x
  2. Step 2: Convert to fraction form
    268,387.65/370,370.79 = 147,526.36/x
  3. Step 3: Cross multiply
    268,387.65x = 370,370.79 × 147,526.36
  4. Step 4: Simplify right side
    268,387.65x = 54,639,453,573.10
  5. Step 5: Solve for x
    x = 54,639,453,573.10/268,387.65
  6. Step 6: Final answer
    x = 203,584.08

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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.