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Finding the Fourth Proportional to 262,223.80, 393,627.30 and 162,496.60

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Solution

The fourth proportional to 262,223.80, 393,627.30 and 162,496.60 is: 243,925.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    262,223.80 : 393,627.30 = 162,496.60 : x
  2. Step 2: Convert to fraction form
    262,223.80/393,627.30 = 162,496.60/x
  3. Step 3: Cross multiply
    262,223.80x = 393,627.30 × 162,496.60
  4. Step 4: Simplify right side
    262,223.80x = 63,963,097,917.18
  5. Step 5: Solve for x
    x = 63,963,097,917.18/262,223.80
  6. Step 6: Final answer
    x = 243,925.60

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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.