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Finding the Fourth Proportional to 93,062.38, 128,426.69 and 50,621.21

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Solution

The fourth proportional to 93,062.38, 128,426.69 and 50,621.21 is: 69,857.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,062.38 : 128,426.69 = 50,621.21 : x
  2. Step 2: Convert to fraction form
    93,062.38/128,426.69 = 50,621.21/x
  3. Step 3: Cross multiply
    93,062.38x = 128,426.69 × 50,621.21
  4. Step 4: Simplify right side
    93,062.38x = 6,501,114,444.09
  5. Step 5: Solve for x
    x = 6,501,114,444.09/93,062.38
  6. Step 6: Final answer
    x = 69,857.60

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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.