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Finding the Fourth Proportional to 102,362.40, 153,640.80 and 62,996.40

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Solution

The fourth proportional to 102,362.40, 153,640.80 and 62,996.40 is: 94,554.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,362.40 : 153,640.80 = 62,996.40 : x
  2. Step 2: Convert to fraction form
    102,362.40/153,640.80 = 62,996.40/x
  3. Step 3: Cross multiply
    102,362.40x = 153,640.80 × 62,996.40
  4. Step 4: Simplify right side
    102,362.40x = 9,678,817,293.12
  5. Step 5: Solve for x
    x = 9,678,817,293.12/102,362.40
  6. Step 6: Final answer
    x = 94,554.42

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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.