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Finding the Fourth Proportional to 368,617.97, 553,000.77 and 115,962.03

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Solution

The fourth proportional to 368,617.97, 553,000.77 and 115,962.03 is: 173,966.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    368,617.97 : 553,000.77 = 115,962.03 : x
  2. Step 2: Convert to fraction form
    368,617.97/553,000.77 = 115,962.03/x
  3. Step 3: Cross multiply
    368,617.97x = 553,000.77 × 115,962.03
  4. Step 4: Simplify right side
    368,617.97x = 64,127,091,880.76
  5. Step 5: Solve for x
    x = 64,127,091,880.76/368,617.97
  6. Step 6: Final answer
    x = 173,966.26

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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.