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Finding the Fourth Proportional to 188,410.68, 260,006.94 and 103,532.76

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Solution

The fourth proportional to 188,410.68, 260,006.94 and 103,532.76 is: 142,875.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    188,410.68 : 260,006.94 = 103,532.76 : x
  2. Step 2: Convert to fraction form
    188,410.68/260,006.94 = 103,532.76/x
  3. Step 3: Cross multiply
    188,410.68x = 260,006.94 × 103,532.76
  4. Step 4: Simplify right side
    188,410.68x = 26,919,236,117.35
  5. Step 5: Solve for x
    x = 26,919,236,117.35/188,410.68
  6. Step 6: Final answer
    x = 142,875.32

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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.