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Finding the Fourth Proportional to 102,548.90, 153,844.95 and 43,354.10

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Solution

The fourth proportional to 102,548.90, 153,844.95 and 43,354.10 is: 65,040.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,548.90 : 153,844.95 = 43,354.10 : x
  2. Step 2: Convert to fraction form
    102,548.90/153,844.95 = 43,354.10/x
  3. Step 3: Cross multiply
    102,548.90x = 153,844.95 × 43,354.10
  4. Step 4: Simplify right side
    102,548.90x = 6,669,809,346.80
  5. Step 5: Solve for x
    x = 6,669,809,346.80/102,548.90
  6. Step 6: Final answer
    x = 65,040.28

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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.