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Finding the Fourth Proportional to 191,914.33, 288,120.94 and 147,572.22

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Solution

The fourth proportional to 191,914.33, 288,120.94 and 147,572.22 is: 221,550.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    191,914.33 : 288,120.94 = 147,572.22 : x
  2. Step 2: Convert to fraction form
    191,914.33/288,120.94 = 147,572.22/x
  3. Step 3: Cross multiply
    191,914.33x = 288,120.94 × 147,572.22
  4. Step 4: Simplify right side
    191,914.33x = 42,518,646,744.29
  5. Step 5: Solve for x
    x = 42,518,646,744.29/191,914.33
  6. Step 6: Final answer
    x = 221,550.14

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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.