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Finding the Fourth Proportional to 93,333.60, 128,800.26 and 55,093.20

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Solution

The fourth proportional to 93,333.60, 128,800.26 and 55,093.20 is: 76,028.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,333.60 : 128,800.26 = 55,093.20 : x
  2. Step 2: Convert to fraction form
    93,333.60/128,800.26 = 55,093.20/x
  3. Step 3: Cross multiply
    93,333.60x = 128,800.26 × 55,093.20
  4. Step 4: Simplify right side
    93,333.60x = 7,096,018,484.23
  5. Step 5: Solve for x
    x = 7,096,018,484.23/93,333.60
  6. Step 6: Final answer
    x = 76,028.55

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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.