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Finding the Fourth Proportional to 93,054.79, 139,578.33 and 29,878.51

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Solution

The fourth proportional to 93,054.79, 139,578.33 and 29,878.51 is: 44,816.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,054.79 : 139,578.33 = 29,878.51 : x
  2. Step 2: Convert to fraction form
    93,054.79/139,578.33 = 29,878.51/x
  3. Step 3: Cross multiply
    93,054.79x = 139,578.33 × 29,878.51
  4. Step 4: Simplify right side
    93,054.79x = 4,170,392,528.69
  5. Step 5: Solve for x
    x = 4,170,392,528.69/93,054.79
  6. Step 6: Final answer
    x = 44,816.53

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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.