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Finding the Fourth Proportional to 358,547.78, 537,825.99 and 109,231.94

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Solution

The fourth proportional to 358,547.78, 537,825.99 and 109,231.94 is: 163,849.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    358,547.78 : 537,825.99 = 109,231.94 : x
  2. Step 2: Convert to fraction form
    358,547.78/537,825.99 = 109,231.94/x
  3. Step 3: Cross multiply
    358,547.78x = 537,825.99 × 109,231.94
  4. Step 4: Simplify right side
    358,547.78x = 58,747,776,270.12
  5. Step 5: Solve for x
    x = 58,747,776,270.12/358,547.78
  6. Step 6: Final answer
    x = 163,849.23

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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.