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Finding the Fourth Proportional to 103,693.79, 155,411.26 and 44,460.74

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Solution

The fourth proportional to 103,693.79, 155,411.26 and 44,460.74 is: 66,635.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,693.79 : 155,411.26 = 44,460.74 : x
  2. Step 2: Convert to fraction form
    103,693.79/155,411.26 = 44,460.74/x
  3. Step 3: Cross multiply
    103,693.79x = 155,411.26 × 44,460.74
  4. Step 4: Simplify right side
    103,693.79x = 6,909,699,623.93
  5. Step 5: Solve for x
    x = 6,909,699,623.93/103,693.79
  6. Step 6: Final answer
    x = 66,635.62

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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.