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Finding the Fourth Proportional to 93,047.19, 128,405.73 and 50,606.03

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Solution

The fourth proportional to 93,047.19, 128,405.73 and 50,606.03 is: 69,836.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,047.19 : 128,405.73 = 50,606.03 : x
  2. Step 2: Convert to fraction form
    93,047.19/128,405.73 = 50,606.03/x
  3. Step 3: Cross multiply
    93,047.19x = 128,405.73 × 50,606.03
  4. Step 4: Simplify right side
    93,047.19x = 6,498,104,224.55
  5. Step 5: Solve for x
    x = 6,498,104,224.55/93,047.19
  6. Step 6: Final answer
    x = 69,836.65

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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.