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Finding the Fourth Proportional to 188,673.60, 260,360.16 and 103,788.48

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Solution

The fourth proportional to 188,673.60, 260,360.16 and 103,788.48 is: 143,222.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    188,673.60 : 260,360.16 = 103,788.48 : x
  2. Step 2: Convert to fraction form
    188,673.60/260,360.16 = 103,788.48/x
  3. Step 3: Cross multiply
    188,673.60x = 260,360.16 × 103,788.48
  4. Step 4: Simplify right side
    188,673.60x = 27,022,385,258.96
  5. Step 5: Solve for x
    x = 27,022,385,258.96/188,673.60
  6. Step 6: Final answer
    x = 143,222.93

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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.