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Finding the Fourth Proportional to 93,093.72, 128,472.04 and 50,654.98

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Solution

The fourth proportional to 93,093.72, 128,472.04 and 50,654.98 is: 69,905.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,093.72 : 128,472.04 = 50,654.98 : x
  2. Step 2: Convert to fraction form
    93,093.72/128,472.04 = 50,654.98/x
  3. Step 3: Cross multiply
    93,093.72x = 128,472.04 × 50,654.98
  4. Step 4: Simplify right side
    93,093.72x = 6,507,748,616.76
  5. Step 5: Solve for x
    x = 6,507,748,616.76/93,093.72
  6. Step 6: Final answer
    x = 69,905.35

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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.