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Finding the Fourth Proportional to 201,368, 302,053.82 and 61,126.62

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Solution

The fourth proportional to 201,368, 302,053.82 and 61,126.62 is: 91,690.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    201,368 : 302,053.82 = 61,126.62 : x
  2. Step 2: Convert to fraction form
    201,368/302,053.82 = 61,126.62/x
  3. Step 3: Cross multiply
    201,368x = 302,053.82 × 61,126.62
  4. Step 4: Simplify right side
    201,368x = 18,463,529,074.69
  5. Step 5: Solve for x
    x = 18,463,529,074.69/201,368
  6. Step 6: Final answer
    x = 91,690.48

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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.