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Finding the Fourth Proportional to 358,547.50, 537,821.30 and 109,229.50

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Solution

The fourth proportional to 358,547.50, 537,821.30 and 109,229.50 is: 163,844.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    358,547.50 : 537,821.30 = 109,229.50 : x
  2. Step 2: Convert to fraction form
    358,547.50/537,821.30 = 109,229.50/x
  3. Step 3: Cross multiply
    358,547.50x = 537,821.30 × 109,229.50
  4. Step 4: Simplify right side
    358,547.50x = 58,745,951,688.35
  5. Step 5: Solve for x
    x = 58,745,951,688.35/358,547.50
  6. Step 6: Final answer
    x = 163,844.27

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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.