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Finding the Fourth Proportional to 245,905.20, 368,857.80 and 175,046.40

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Solution

The fourth proportional to 245,905.20, 368,857.80 and 175,046.40 is: 262,569.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    245,905.20 : 368,857.80 = 175,046.40 : x
  2. Step 2: Convert to fraction form
    245,905.20/368,857.80 = 175,046.40/x
  3. Step 3: Cross multiply
    245,905.20x = 368,857.80 × 175,046.40
  4. Step 4: Simplify right side
    245,905.20x = 64,567,230,001.92
  5. Step 5: Solve for x
    x = 64,567,230,001.92/245,905.20
  6. Step 6: Final answer
    x = 262,569.60

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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.