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Finding the Fourth Proportional to 200,712.30, 301,068.45 and 67,548.30

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Solution

The fourth proportional to 200,712.30, 301,068.45 and 67,548.30 is: 101,322.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    200,712.30 : 301,068.45 = 67,548.30 : x
  2. Step 2: Convert to fraction form
    200,712.30/301,068.45 = 67,548.30/x
  3. Step 3: Cross multiply
    200,712.30x = 301,068.45 × 67,548.30
  4. Step 4: Simplify right side
    200,712.30x = 20,336,661,981.14
  5. Step 5: Solve for x
    x = 20,336,661,981.14/200,712.30
  6. Step 6: Final answer
    x = 101,322.45

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1.5x scale

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.