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Finding the Fourth Proportional to 144,540.40, 216,810.60 and 51,055.60

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Solution

The fourth proportional to 144,540.40, 216,810.60 and 51,055.60 is: 76,583.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,540.40 : 216,810.60 = 51,055.60 : x
  2. Step 2: Convert to fraction form
    144,540.40/216,810.60 = 51,055.60/x
  3. Step 3: Cross multiply
    144,540.40x = 216,810.60 × 51,055.60
  4. Step 4: Simplify right side
    144,540.40x = 11,069,395,269.36
  5. Step 5: Solve for x
    x = 11,069,395,269.36/144,540.40
  6. Step 6: Final answer
    x = 76,583.40

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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.