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Finding the Fourth Proportional to 144,675.60, 217,013.40 and 49,905.60

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Solution

The fourth proportional to 144,675.60, 217,013.40 and 49,905.60 is: 74,858.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,675.60 : 217,013.40 = 49,905.60 : x
  2. Step 2: Convert to fraction form
    144,675.60/217,013.40 = 49,905.60/x
  3. Step 3: Cross multiply
    144,675.60x = 217,013.40 × 49,905.60
  4. Step 4: Simplify right side
    144,675.60x = 10,830,183,935.04
  5. Step 5: Solve for x
    x = 10,830,183,935.04/144,675.60
  6. Step 6: Final answer
    x = 74,858.40

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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.