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Finding the Fourth Proportional to 144,958.60, 217,437.90 and 97,719.40

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Solution

The fourth proportional to 144,958.60, 217,437.90 and 97,719.40 is: 146,579.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,958.60 : 217,437.90 = 97,719.40 : x
  2. Step 2: Convert to fraction form
    144,958.60/217,437.90 = 97,719.40/x
  3. Step 3: Cross multiply
    144,958.60x = 217,437.90 × 97,719.40
  4. Step 4: Simplify right side
    144,958.60x = 21,247,901,125.26
  5. Step 5: Solve for x
    x = 21,247,901,125.26/144,958.60
  6. Step 6: Final answer
    x = 146,579.10

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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.