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Finding the Fourth Proportional to 260,956.60, 360,114 and 153,533.56

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Solution

The fourth proportional to 260,956.60, 360,114 and 153,533.56 is: 211,872.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    260,956.60 : 360,114 = 153,533.56 : x
  2. Step 2: Convert to fraction form
    260,956.60/360,114 = 153,533.56/x
  3. Step 3: Cross multiply
    260,956.60x = 360,114 × 153,533.56
  4. Step 4: Simplify right side
    260,956.60x = 55,289,584,425.84
  5. Step 5: Solve for x
    x = 55,289,584,425.84/260,956.60
  6. Step 6: Final answer
    x = 211,872.72

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1.5x scale

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.