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Finding the Fourth Proportional to 188,552.89, 260,263.94 and 120,752.47

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Solution

The fourth proportional to 188,552.89, 260,263.94 and 120,752.47 is: 166,677.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    188,552.89 : 260,263.94 = 120,752.47 : x
  2. Step 2: Convert to fraction form
    188,552.89/260,263.94 = 120,752.47/x
  3. Step 3: Cross multiply
    188,552.89x = 260,263.94 × 120,752.47
  4. Step 4: Simplify right side
    188,552.89x = 31,427,513,328.50
  5. Step 5: Solve for x
    x = 31,427,513,328.50/188,552.89
  6. Step 6: Final answer
    x = 166,677.44

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.