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Finding the Fourth Proportional to 93,315.84, 128,772.60 and 50,873.52

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Solution

The fourth proportional to 93,315.84, 128,772.60 and 50,873.52 is: 70,203.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,315.84 : 128,772.60 = 50,873.52 : x
  2. Step 2: Convert to fraction form
    93,315.84/128,772.60 = 50,873.52/x
  3. Step 3: Cross multiply
    93,315.84x = 128,772.60 × 50,873.52
  4. Step 4: Simplify right side
    93,315.84x = 6,551,115,441.55
  5. Step 5: Solve for x
    x = 6,551,115,441.55/93,315.84
  6. Step 6: Final answer
    x = 70,203.68

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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.