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Finding the Fourth Proportional to 93,210.54, 128,630.55 and 50,769.10

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Solution

The fourth proportional to 93,210.54, 128,630.55 and 50,769.10 is: 70,061.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,210.54 : 128,630.55 = 50,769.10 : x
  2. Step 2: Convert to fraction form
    93,210.54/128,630.55 = 50,769.10/x
  3. Step 3: Cross multiply
    93,210.54x = 128,630.55 × 50,769.10
  4. Step 4: Simplify right side
    93,210.54x = 6,530,457,256.01
  5. Step 5: Solve for x
    x = 6,530,457,256.01/93,210.54
  6. Step 6: Final answer
    x = 70,061.36

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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.