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Finding the Fourth Proportional to 188,574.60, 260,244.18 and 103,698.12

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Solution

The fourth proportional to 188,574.60, 260,244.18 and 103,698.12 is: 143,109.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    188,574.60 : 260,244.18 = 103,698.12 : x
  2. Step 2: Convert to fraction form
    188,574.60/260,244.18 = 103,698.12/x
  3. Step 3: Cross multiply
    188,574.60x = 260,244.18 × 103,698.12
  4. Step 4: Simplify right side
    188,574.60x = 26,986,832,206.94
  5. Step 5: Solve for x
    x = 26,986,832,206.94/188,574.60
  6. Step 6: Final answer
    x = 143,109.58

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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.