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Finding the Fourth Proportional to 93,434.72, 128,943.08 and 50,995.60

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Solution

The fourth proportional to 93,434.72, 128,943.08 and 50,995.60 is: 70,375.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,434.72 : 128,943.08 = 50,995.60 : x
  2. Step 2: Convert to fraction form
    93,434.72/128,943.08 = 50,995.60/x
  3. Step 3: Cross multiply
    93,434.72x = 128,943.08 × 50,995.60
  4. Step 4: Simplify right side
    93,434.72x = 6,575,529,730.45
  5. Step 5: Solve for x
    x = 6,575,529,730.45/93,434.72
  6. Step 6: Final answer
    x = 70,375.66

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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.