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Finding the Fourth Proportional to 188,809.68, 260,424.68 and 124,258.36

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Solution

The fourth proportional to 188,809.68, 260,424.68 and 124,258.36 is: 171,389.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    188,809.68 : 260,424.68 = 124,258.36 : x
  2. Step 2: Convert to fraction form
    188,809.68/260,424.68 = 124,258.36/x
  3. Step 3: Cross multiply
    188,809.68x = 260,424.68 × 124,258.36
  4. Step 4: Simplify right side
    188,809.68x = 32,359,943,640.32
  5. Step 5: Solve for x
    x = 32,359,943,640.32/188,809.68
  6. Step 6: Final answer
    x = 171,389.22

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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.