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Finding the Fourth Proportional to 334,089.20, 501,133.80 and 156,942.20

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Solution

The fourth proportional to 334,089.20, 501,133.80 and 156,942.20 is: 235,413.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    334,089.20 : 501,133.80 = 156,942.20 : x
  2. Step 2: Convert to fraction form
    334,089.20/501,133.80 = 156,942.20/x
  3. Step 3: Cross multiply
    334,089.20x = 501,133.80 × 156,942.20
  4. Step 4: Simplify right side
    334,089.20x = 78,649,041,066.36
  5. Step 5: Solve for x
    x = 78,649,041,066.36/334,089.20
  6. Step 6: Final answer
    x = 235,413.30

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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.