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Finding the Fourth Proportional to 93,107.71, 128,491.32 and 50,668.93

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Solution

The fourth proportional to 93,107.71, 128,491.32 and 50,668.93 is: 69,924.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,107.71 : 128,491.32 = 50,668.93 : x
  2. Step 2: Convert to fraction form
    93,107.71/128,491.32 = 50,668.93/x
  3. Step 3: Cross multiply
    93,107.71x = 128,491.32 × 50,668.93
  4. Step 4: Simplify right side
    93,107.71x = 6,510,517,698.69
  5. Step 5: Solve for x
    x = 6,510,517,698.69/93,107.71
  6. Step 6: Final answer
    x = 69,924.58

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1.5x scale

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.