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Finding the Fourth Proportional to 323,316.76, 484,975.08 and 98,678.35

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Solution

The fourth proportional to 323,316.76, 484,975.08 and 98,678.35 is: 148,017.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    323,316.76 : 484,975.08 = 98,678.35 : x
  2. Step 2: Convert to fraction form
    323,316.76/484,975.08 = 98,678.35/x
  3. Step 3: Cross multiply
    323,316.76x = 484,975.08 × 98,678.35
  4. Step 4: Simplify right side
    323,316.76x = 47,856,540,685.52
  5. Step 5: Solve for x
    x = 47,856,540,685.52/323,316.76
  6. Step 6: Final answer
    x = 148,017.51

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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.