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Finding the Fourth Proportional to 175,228.80, 262,238.40 and 105,158.40

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Solution

The fourth proportional to 175,228.80, 262,238.40 and 105,158.40 is: 157,374.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    175,228.80 : 262,238.40 = 105,158.40 : x
  2. Step 2: Convert to fraction form
    175,228.80/262,238.40 = 105,158.40/x
  3. Step 3: Cross multiply
    175,228.80x = 262,238.40 × 105,158.40
  4. Step 4: Simplify right side
    175,228.80x = 27,576,570,562.56
  5. Step 5: Solve for x
    x = 27,576,570,562.56/175,228.80
  6. Step 6: Final answer
    x = 157,374.65

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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.