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Finding the Fourth Proportional to 93,166.08, 128,612.52 and 54,913.56

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Solution

The fourth proportional to 93,166.08, 128,612.52 and 54,913.56 is: 75,806.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,166.08 : 128,612.52 = 54,913.56 : x
  2. Step 2: Convert to fraction form
    93,166.08/128,612.52 = 54,913.56/x
  3. Step 3: Cross multiply
    93,166.08x = 128,612.52 × 54,913.56
  4. Step 4: Simplify right side
    93,166.08x = 7,062,571,333.77
  5. Step 5: Solve for x
    x = 7,062,571,333.77/93,166.08
  6. Step 6: Final answer
    x = 75,806.25

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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.