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Finding the Fourth Proportional to 93,358.10, 128,832.77 and 50,916.63

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Solution

The fourth proportional to 93,358.10, 128,832.77 and 50,916.63 is: 70,264.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,358.10 : 128,832.77 = 50,916.63 : x
  2. Step 2: Convert to fraction form
    93,358.10/128,832.77 = 50,916.63/x
  3. Step 3: Cross multiply
    93,358.10x = 128,832.77 × 50,916.63
  4. Step 4: Simplify right side
    93,358.10x = 6,559,730,481.97
  5. Step 5: Solve for x
    x = 6,559,730,481.97/93,358.10
  6. Step 6: Final answer
    x = 70,264.18

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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.