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Finding the Fourth Proportional to 188,955.52, 260,756.96 and 104,070.80

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Solution

The fourth proportional to 188,955.52, 260,756.96 and 104,070.80 is: 143,616.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    188,955.52 : 260,756.96 = 104,070.80 : x
  2. Step 2: Convert to fraction form
    188,955.52/260,756.96 = 104,070.80/x
  3. Step 3: Cross multiply
    188,955.52x = 260,756.96 × 104,070.80
  4. Step 4: Simplify right side
    188,955.52x = 27,137,185,432.77
  5. Step 5: Solve for x
    x = 27,137,185,432.77/188,955.52
  6. Step 6: Final answer
    x = 143,616.79

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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.