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Finding the Fourth Proportional to 93,359.80, 128,838.24 and 50,918.20

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Solution

The fourth proportional to 93,359.80, 128,838.24 and 50,918.20 is: 70,268.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,359.80 : 128,838.24 = 50,918.20 : x
  2. Step 2: Convert to fraction form
    93,359.80/128,838.24 = 50,918.20/x
  3. Step 3: Cross multiply
    93,359.80x = 128,838.24 × 50,918.20
  4. Step 4: Simplify right side
    93,359.80x = 6,560,211,271.97
  5. Step 5: Solve for x
    x = 6,560,211,271.97/93,359.80
  6. Step 6: Final answer
    x = 70,268.05

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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.