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Finding the Fourth Proportional to 93,359.30, 128,813.67 and 53,069.87

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Solution

The fourth proportional to 93,359.30, 128,813.67 and 53,069.87 is: 73,223.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,359.30 : 128,813.67 = 53,069.87 : x
  2. Step 2: Convert to fraction form
    93,359.30/128,813.67 = 53,069.87/x
  3. Step 3: Cross multiply
    93,359.30x = 128,813.67 × 53,069.87
  4. Step 4: Simplify right side
    93,359.30x = 6,836,125,043.16
  5. Step 5: Solve for x
    x = 6,836,125,043.16/93,359.30
  6. Step 6: Final answer
    x = 73,223.83

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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.