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Finding the Fourth Proportional to 369,151.65, 553,727.48 and 211,396.05

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Solution

The fourth proportional to 369,151.65, 553,727.48 and 211,396.05 is: 317,094.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    369,151.65 : 553,727.48 = 211,396.05 : x
  2. Step 2: Convert to fraction form
    369,151.65/553,727.48 = 211,396.05/x
  3. Step 3: Cross multiply
    369,151.65x = 553,727.48 × 211,396.05
  4. Step 4: Simplify right side
    369,151.65x = 117,055,800,991.47
  5. Step 5: Solve for x
    x = 117,055,800,991.47/369,151.65
  6. Step 6: Final answer
    x = 317,094.08

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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.