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Finding the Fourth Proportional to 268,507.60, 402,415.80 and 163,214.80

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Solution

The fourth proportional to 268,507.60, 402,415.80 and 163,214.80 is: 244,612.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    268,507.60 : 402,415.80 = 163,214.80 : x
  2. Step 2: Convert to fraction form
    268,507.60/402,415.80 = 163,214.80/x
  3. Step 3: Cross multiply
    268,507.60x = 402,415.80 × 163,214.80
  4. Step 4: Simplify right side
    268,507.60x = 65,680,214,313.84
  5. Step 5: Solve for x
    x = 65,680,214,313.84/268,507.60
  6. Step 6: Final answer
    x = 244,612.12

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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.