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Finding the Fourth Proportional to 268,911.60, 371,083.32 and 148,048.32

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Solution

The fourth proportional to 268,911.60, 371,083.32 and 148,048.32 is: 204,298.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    268,911.60 : 371,083.32 = 148,048.32 : x
  2. Step 2: Convert to fraction form
    268,911.60/371,083.32 = 148,048.32/x
  3. Step 3: Cross multiply
    268,911.60x = 371,083.32 × 148,048.32
  4. Step 4: Simplify right side
    268,911.60x = 54,938,262,106.02
  5. Step 5: Solve for x
    x = 54,938,262,106.02/268,911.60
  6. Step 6: Final answer
    x = 204,298.60

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.