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Finding the Fourth Proportional to 173,818.40, 260,727.60 and 120,365.60

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Solution

The fourth proportional to 173,818.40, 260,727.60 and 120,365.60 is: 180,548.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    173,818.40 : 260,727.60 = 120,365.60 : x
  2. Step 2: Convert to fraction form
    173,818.40/260,727.60 = 120,365.60/x
  3. Step 3: Cross multiply
    173,818.40x = 260,727.60 × 120,365.60
  4. Step 4: Simplify right side
    173,818.40x = 31,382,634,010.56
  5. Step 5: Solve for x
    x = 31,382,634,010.56/173,818.40
  6. Step 6: Final answer
    x = 180,548.40

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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.