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Finding the Fourth Proportional to 121,570.76, 182,379.77 and 46,685.39

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Solution

The fourth proportional to 121,570.76, 182,379.77 and 46,685.39 is: 70,037.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,570.76 : 182,379.77 = 46,685.39 : x
  2. Step 2: Convert to fraction form
    121,570.76/182,379.77 = 46,685.39/x
  3. Step 3: Cross multiply
    121,570.76x = 182,379.77 × 46,685.39
  4. Step 4: Simplify right side
    121,570.76x = 8,514,470,913.08
  5. Step 5: Solve for x
    x = 8,514,470,913.08/121,570.76
  6. Step 6: Final answer
    x = 70,037.16

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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.