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Finding the Fourth Proportional to 364,628.10, 546,942.12 and 98,388.60

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Solution

The fourth proportional to 364,628.10, 546,942.12 and 98,388.60 is: 147,582.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    364,628.10 : 546,942.12 = 98,388.60 : x
  2. Step 2: Convert to fraction form
    364,628.10/546,942.12 = 98,388.60/x
  3. Step 3: Cross multiply
    364,628.10x = 546,942.12 × 98,388.60
  4. Step 4: Simplify right side
    364,628.10x = 53,812,869,467.83
  5. Step 5: Solve for x
    x = 53,812,869,467.83/364,628.10
  6. Step 6: Final answer
    x = 147,582.89

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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.