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Finding the Fourth Proportional to 65,388.38, 97,943.36 and 49,417.47

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Solution

The fourth proportional to 65,388.38, 97,943.36 and 49,417.47 is: 74,021.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,388.38 : 97,943.36 = 49,417.47 : x
  2. Step 2: Convert to fraction form
    65,388.38/97,943.36 = 49,417.47/x
  3. Step 3: Cross multiply
    65,388.38x = 97,943.36 × 49,417.47
  4. Step 4: Simplify right side
    65,388.38x = 4,840,112,807.41
  5. Step 5: Solve for x
    x = 4,840,112,807.41/65,388.38
  6. Step 6: Final answer
    x = 74,021.00

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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.