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Finding the Fourth Proportional to 239,257.04, 358,763.49 and 79,275.25

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Solution

The fourth proportional to 239,257.04, 358,763.49 and 79,275.25 is: 118,872.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    239,257.04 : 358,763.49 = 79,275.25 : x
  2. Step 2: Convert to fraction form
    239,257.04/358,763.49 = 79,275.25/x
  3. Step 3: Cross multiply
    239,257.04x = 358,763.49 × 79,275.25
  4. Step 4: Simplify right side
    239,257.04x = 28,441,064,463.71
  5. Step 5: Solve for x
    x = 28,441,064,463.71/239,257.04
  6. Step 6: Final answer
    x = 118,872.43

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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.