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Finding the Fourth Proportional to 188,956.40, 260,740.37 and 116,347.69

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Solution

The fourth proportional to 188,956.40, 260,740.37 and 116,347.69 is: 160,547.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    188,956.40 : 260,740.37 = 116,347.69 : x
  2. Step 2: Convert to fraction form
    188,956.40/260,740.37 = 116,347.69/x
  3. Step 3: Cross multiply
    188,956.40x = 260,740.37 × 116,347.69
  4. Step 4: Simplify right side
    188,956.40x = 30,336,539,701.58
  5. Step 5: Solve for x
    x = 30,336,539,701.58/188,956.40
  6. Step 6: Final answer
    x = 160,547.83

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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.