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Finding the Fourth Proportional to 144,390.60, 216,621.36 and 49,622.16

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Solution

The fourth proportional to 144,390.60, 216,621.36 and 49,622.16 is: 74,445.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,390.60 : 216,621.36 = 49,622.16 : x
  2. Step 2: Convert to fraction form
    144,390.60/216,621.36 = 49,622.16/x
  3. Step 3: Cross multiply
    144,390.60x = 216,621.36 × 49,622.16
  4. Step 4: Simplify right side
    144,390.60x = 10,749,219,785.34
  5. Step 5: Solve for x
    x = 10,749,219,785.34/144,390.60
  6. Step 6: Final answer
    x = 74,445.43

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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.