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Finding the Fourth Proportional to 102,574.45, 153,877.88 and 43,410.43

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Solution

The fourth proportional to 102,574.45, 153,877.88 and 43,410.43 is: 65,122.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,574.45 : 153,877.88 = 43,410.43 : x
  2. Step 2: Convert to fraction form
    102,574.45/153,877.88 = 43,410.43/x
  3. Step 3: Cross multiply
    102,574.45x = 153,877.88 × 43,410.43
  4. Step 4: Simplify right side
    102,574.45x = 6,679,904,938.29
  5. Step 5: Solve for x
    x = 6,679,904,938.29/102,574.45
  6. Step 6: Final answer
    x = 65,122.50

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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.