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Finding the Fourth Proportional to 260,678.94, 391,047.57 and 73,705.02

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Solution

The fourth proportional to 260,678.94, 391,047.57 and 73,705.02 is: 110,565.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    260,678.94 : 391,047.57 = 73,705.02 : x
  2. Step 2: Convert to fraction form
    260,678.94/391,047.57 = 73,705.02/x
  3. Step 3: Cross multiply
    260,678.94x = 391,047.57 × 73,705.02
  4. Step 4: Simplify right side
    260,678.94x = 28,822,168,967.80
  5. Step 5: Solve for x
    x = 28,822,168,967.80/260,678.94
  6. Step 6: Final answer
    x = 110,565.77

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.