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Finding the Fourth Proportional to 93,410.76, 128,903.40 and 50,968.38

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Solution

The fourth proportional to 93,410.76, 128,903.40 and 50,968.38 is: 70,334.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,410.76 : 128,903.40 = 50,968.38 : x
  2. Step 2: Convert to fraction form
    93,410.76/128,903.40 = 50,968.38/x
  3. Step 3: Cross multiply
    93,410.76x = 128,903.40 × 50,968.38
  4. Step 4: Simplify right side
    93,410.76x = 6,569,997,474.49
  5. Step 5: Solve for x
    x = 6,569,997,474.49/93,410.76
  6. Step 6: Final answer
    x = 70,334.48

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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.