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Finding the Fourth Proportional to 74,624.61, 102,948.69 and 50,417.79

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Solution

The fourth proportional to 74,624.61, 102,948.69 and 50,417.79 is: 69,554.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,624.61 : 102,948.69 = 50,417.79 : x
  2. Step 2: Convert to fraction form
    74,624.61/102,948.69 = 50,417.79/x
  3. Step 3: Cross multiply
    74,624.61x = 102,948.69 × 50,417.79
  4. Step 4: Simplify right side
    74,624.61x = 5,190,445,433.20
  5. Step 5: Solve for x
    x = 5,190,445,433.20/74,624.61
  6. Step 6: Final answer
    x = 69,554.07

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.