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Finding the Fourth Proportional to 93,072.76, 128,443.26 and 50,628.76

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Solution

The fourth proportional to 93,072.76, 128,443.26 and 50,628.76 is: 69,869.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,072.76 : 128,443.26 = 50,628.76 : x
  2. Step 2: Convert to fraction form
    93,072.76/128,443.26 = 50,628.76/x
  3. Step 3: Cross multiply
    93,072.76x = 128,443.26 × 50,628.76
  4. Step 4: Simplify right side
    93,072.76x = 6,502,922,984.16
  5. Step 5: Solve for x
    x = 6,502,922,984.16/93,072.76
  6. Step 6: Final answer
    x = 69,869.24

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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.