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Finding the Fourth Proportional to 60,490.40, 90,699.60 and 37,133.60

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Solution

The fourth proportional to 60,490.40, 90,699.60 and 37,133.60 is: 55,678.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,490.40 : 90,699.60 = 37,133.60 : x
  2. Step 2: Convert to fraction form
    60,490.40/90,699.60 = 37,133.60/x
  3. Step 3: Cross multiply
    60,490.40x = 90,699.60 × 37,133.60
  4. Step 4: Simplify right side
    60,490.40x = 3,368,002,666.56
  5. Step 5: Solve for x
    x = 3,368,002,666.56/60,490.40
  6. Step 6: Final answer
    x = 55,678.30

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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.