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Finding the Fourth Proportional to 401,225.20, 602,071.08 and 164,737.60

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Solution

The fourth proportional to 401,225.20, 602,071.08 and 164,737.60 is: 247,202.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    401,225.20 : 602,071.08 = 164,737.60 : x
  2. Step 2: Convert to fraction form
    401,225.20/602,071.08 = 164,737.60/x
  3. Step 3: Cross multiply
    401,225.20x = 602,071.08 × 164,737.60
  4. Step 4: Simplify right side
    401,225.20x = 99,183,744,748.61
  5. Step 5: Solve for x
    x = 99,183,744,748.61/401,225.20
  6. Step 6: Final answer
    x = 247,202.18

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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.