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Finding the Fourth Proportional to 358,543.50, 537,815.29 and 109,225.50

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Solution

The fourth proportional to 358,543.50, 537,815.29 and 109,225.50 is: 163,838.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    358,543.50 : 537,815.29 = 109,225.50 : x
  2. Step 2: Convert to fraction form
    358,543.50/537,815.29 = 109,225.50/x
  3. Step 3: Cross multiply
    358,543.50x = 537,815.29 × 109,225.50
  4. Step 4: Simplify right side
    358,543.50x = 58,743,143,957.90
  5. Step 5: Solve for x
    x = 58,743,143,957.90/358,543.50
  6. Step 6: Final answer
    x = 163,838.26

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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.