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Finding the Fourth Proportional to 194,603.78, 268,547.13 and 109,719.62

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Solution

The fourth proportional to 194,603.78, 268,547.13 and 109,719.62 is: 151,409.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    194,603.78 : 268,547.13 = 109,719.62 : x
  2. Step 2: Convert to fraction form
    194,603.78/268,547.13 = 109,719.62/x
  3. Step 3: Cross multiply
    194,603.78x = 268,547.13 × 109,719.62
  4. Step 4: Simplify right side
    194,603.78x = 29,464,889,055.69
  5. Step 5: Solve for x
    x = 29,464,889,055.69/194,603.78
  6. Step 6: Final answer
    x = 151,409.64

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.