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Finding the Fourth Proportional to 162,708.40, 218,956.50 and 162,708.40

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Solution

The fourth proportional to 162,708.40, 218,956.50 and 162,708.40 is: 218,956.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    162,708.40 : 218,956.50 = 162,708.40 : x
  2. Step 2: Convert to fraction form
    162,708.40/218,956.50 = 162,708.40/x
  3. Step 3: Cross multiply
    162,708.40x = 218,956.50 × 162,708.40
  4. Step 4: Simplify right side
    162,708.40x = 35,626,061,784.60
  5. Step 5: Solve for x
    x = 35,626,061,784.60/162,708.40
  6. Step 6: Final answer
    x = 218,956.50

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.35) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.