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Finding the Fourth Proportional to 173,415.78, 260,123.64 and 48,756.78

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Solution

The fourth proportional to 173,415.78, 260,123.64 and 48,756.78 is: 73,135.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    173,415.78 : 260,123.64 = 48,756.78 : x
  2. Step 2: Convert to fraction form
    173,415.78/260,123.64 = 48,756.78/x
  3. Step 3: Cross multiply
    173,415.78x = 260,123.64 × 48,756.78
  4. Step 4: Simplify right side
    173,415.78x = 12,682,791,088.28
  5. Step 5: Solve for x
    x = 12,682,791,088.28/173,415.78
  6. Step 6: Final answer
    x = 73,135.16

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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.