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Finding the Fourth Proportional to 93,328.48, 128,796 and 50,889.76

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Solution

The fourth proportional to 93,328.48, 128,796 and 50,889.76 is: 70,229.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,328.48 : 128,796 = 50,889.76 : x
  2. Step 2: Convert to fraction form
    93,328.48/128,796 = 50,889.76/x
  3. Step 3: Cross multiply
    93,328.48x = 128,796 × 50,889.76
  4. Step 4: Simplify right side
    93,328.48x = 6,554,397,528.96
  5. Step 5: Solve for x
    x = 6,554,397,528.96/93,328.48
  6. Step 6: Final answer
    x = 70,229.34

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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.