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Finding the Fourth Proportional to 173,379.39, 260,080.42 and 53,421.63

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Solution

The fourth proportional to 173,379.39, 260,080.42 and 53,421.63 is: 80,135.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    173,379.39 : 260,080.42 = 53,421.63 : x
  2. Step 2: Convert to fraction form
    173,379.39/260,080.42 = 53,421.63/x
  3. Step 3: Cross multiply
    173,379.39x = 260,080.42 × 53,421.63
  4. Step 4: Simplify right side
    173,379.39x = 13,893,919,967.48
  5. Step 5: Solve for x
    x = 13,893,919,967.48/173,379.39
  6. Step 6: Final answer
    x = 80,135.94

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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.