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Finding the Fourth Proportional to 173,854.80, 260,782.20 and 74,127.60

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Solution

The fourth proportional to 173,854.80, 260,782.20 and 74,127.60 is: 111,191.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    173,854.80 : 260,782.20 = 74,127.60 : x
  2. Step 2: Convert to fraction form
    173,854.80/260,782.20 = 74,127.60/x
  3. Step 3: Cross multiply
    173,854.80x = 260,782.20 × 74,127.60
  4. Step 4: Simplify right side
    173,854.80x = 19,331,158,608.72
  5. Step 5: Solve for x
    x = 19,331,158,608.72/173,854.80
  6. Step 6: Final answer
    x = 111,191.40

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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.