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Finding the Fourth Proportional to 188,406.30, 260,000.61 and 103,528.83

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Solution

The fourth proportional to 188,406.30, 260,000.61 and 103,528.83 is: 142,869.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    188,406.30 : 260,000.61 = 103,528.83 : x
  2. Step 2: Convert to fraction form
    188,406.30/260,000.61 = 103,528.83/x
  3. Step 3: Cross multiply
    188,406.30x = 260,000.61 × 103,528.83
  4. Step 4: Simplify right side
    188,406.30x = 26,917,558,952.59
  5. Step 5: Solve for x
    x = 26,917,558,952.59/188,406.30
  6. Step 6: Final answer
    x = 142,869.74

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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.