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Finding the Fourth Proportional to 145,059.10, 217,297.05 and 97,819.90

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Solution

The fourth proportional to 145,059.10, 217,297.05 and 97,819.90 is: 146,533.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,059.10 : 217,297.05 = 97,819.90 : x
  2. Step 2: Convert to fraction form
    145,059.10/217,297.05 = 97,819.90/x
  3. Step 3: Cross multiply
    145,059.10x = 217,297.05 × 97,819.90
  4. Step 4: Simplify right side
    145,059.10x = 21,255,975,701.30
  5. Step 5: Solve for x
    x = 21,255,975,701.30/145,059.10
  6. Step 6: Final answer
    x = 146,533.21

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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.