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Finding the Fourth Proportional to 188,405.68, 260,000.04 and 103,527.76

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Solution

The fourth proportional to 188,405.68, 260,000.04 and 103,527.76 is: 142,868.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    188,405.68 : 260,000.04 = 103,527.76 : x
  2. Step 2: Convert to fraction form
    188,405.68/260,000.04 = 103,527.76/x
  3. Step 3: Cross multiply
    188,405.68x = 260,000.04 × 103,527.76
  4. Step 4: Simplify right side
    188,405.68x = 26,917,221,741.11
  5. Step 5: Solve for x
    x = 26,917,221,741.11/188,405.68
  6. Step 6: Final answer
    x = 142,868.42

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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.