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Finding the Fourth Proportional to 93,465.67, 128,967.41 and 55,219.93

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Solution

The fourth proportional to 93,465.67, 128,967.41 and 55,219.93 is: 76,194.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,465.67 : 128,967.41 = 55,219.93 : x
  2. Step 2: Convert to fraction form
    93,465.67/128,967.41 = 55,219.93/x
  3. Step 3: Cross multiply
    93,465.67x = 128,967.41 × 55,219.93
  4. Step 4: Simplify right side
    93,465.67x = 7,121,571,076.38
  5. Step 5: Solve for x
    x = 7,121,571,076.38/93,465.67
  6. Step 6: Final answer
    x = 76,194.51

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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.