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Finding the Fourth Proportional to 144,961.60, 217,442.40 and 97,722.40

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Solution

The fourth proportional to 144,961.60, 217,442.40 and 97,722.40 is: 146,583.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,961.60 : 217,442.40 = 97,722.40 : x
  2. Step 2: Convert to fraction form
    144,961.60/217,442.40 = 97,722.40/x
  3. Step 3: Cross multiply
    144,961.60x = 217,442.40 × 97,722.40
  4. Step 4: Simplify right side
    144,961.60x = 21,248,993,189.76
  5. Step 5: Solve for x
    x = 21,248,993,189.76/144,961.60
  6. Step 6: Final answer
    x = 146,583.60

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1.5x scale

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.