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Finding the Fourth Proportional to 535,200.60, 802,908.90 and 156,120.60

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Solution

The fourth proportional to 535,200.60, 802,908.90 and 156,120.60 is: 234,212.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    535,200.60 : 802,908.90 = 156,120.60 : x
  2. Step 2: Convert to fraction form
    535,200.60/802,908.90 = 156,120.60/x
  3. Step 3: Cross multiply
    535,200.60x = 802,908.90 × 156,120.60
  4. Step 4: Simplify right side
    535,200.60x = 125,350,619,213.34
  5. Step 5: Solve for x
    x = 125,350,619,213.34/535,200.60
  6. Step 6: Final answer
    x = 234,212.40

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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.