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Finding the Fourth Proportional to 93,153.75, 128,552.19 and 50,712.60

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Solution

The fourth proportional to 93,153.75, 128,552.19 and 50,712.60 is: 69,983.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,153.75 : 128,552.19 = 50,712.60 : x
  2. Step 2: Convert to fraction form
    93,153.75/128,552.19 = 50,712.60/x
  3. Step 3: Cross multiply
    93,153.75x = 128,552.19 × 50,712.60
  4. Step 4: Simplify right side
    93,153.75x = 6,519,215,790.59
  5. Step 5: Solve for x
    x = 6,519,215,790.59/93,153.75
  6. Step 6: Final answer
    x = 69,983.40

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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.