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Finding the Fourth Proportional to 93,278.76, 128,725.29 and 50,837.39

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Solution

The fourth proportional to 93,278.76, 128,725.29 and 50,837.39 is: 70,155.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,278.76 : 128,725.29 = 50,837.39 : x
  2. Step 2: Convert to fraction form
    93,278.76/128,725.29 = 50,837.39/x
  3. Step 3: Cross multiply
    93,278.76x = 128,725.29 × 50,837.39
  4. Step 4: Simplify right side
    93,278.76x = 6,544,057,126.97
  5. Step 5: Solve for x
    x = 6,544,057,126.97/93,278.76
  6. Step 6: Final answer
    x = 70,155.92

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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.