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Finding the Fourth Proportional to 173,411.74, 260,138.45 and 61,068.74

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Solution

The fourth proportional to 173,411.74, 260,138.45 and 61,068.74 is: 91,610.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    173,411.74 : 260,138.45 = 61,068.74 : x
  2. Step 2: Convert to fraction form
    173,411.74/260,138.45 = 61,068.74/x
  3. Step 3: Cross multiply
    173,411.74x = 260,138.45 × 61,068.74
  4. Step 4: Simplify right side
    173,411.74x = 15,886,327,194.55
  5. Step 5: Solve for x
    x = 15,886,327,194.55/173,411.74
  6. Step 6: Final answer
    x = 91,610.45

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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.