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Finding the Fourth Proportional to 93,346.89, 128,818.71 and 50,905.71

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Solution

The fourth proportional to 93,346.89, 128,818.71 and 50,905.71 is: 70,249.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,346.89 : 128,818.71 = 50,905.71 : x
  2. Step 2: Convert to fraction form
    93,346.89/128,818.71 = 50,905.71/x
  3. Step 3: Cross multiply
    93,346.89x = 128,818.71 × 50,905.71
  4. Step 4: Simplify right side
    93,346.89x = 6,557,607,893.83
  5. Step 5: Solve for x
    x = 6,557,607,893.83/93,346.89
  6. Step 6: Final answer
    x = 70,249.88

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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.