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Finding the Fourth Proportional to 60,420.51, 83,369.32 and 34,917.53

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Solution

The fourth proportional to 60,420.51, 83,369.32 and 34,917.53 is: 48,179.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,420.51 : 83,369.32 = 34,917.53 : x
  2. Step 2: Convert to fraction form
    60,420.51/83,369.32 = 34,917.53/x
  3. Step 3: Cross multiply
    60,420.51x = 83,369.32 × 34,917.53
  4. Step 4: Simplify right side
    60,420.51x = 2,911,050,732.18
  5. Step 5: Solve for x
    x = 2,911,050,732.18/60,420.51
  6. Step 6: Final answer
    x = 48,179.84

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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.