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Finding the Fourth Proportional to 93,410.00, 128,908.64 and 53,129.55

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Solution

The fourth proportional to 93,410.00, 128,908.64 and 53,129.55 is: 73,320.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,410.00 : 128,908.64 = 53,129.55 : x
  2. Step 2: Convert to fraction form
    93,410.00/128,908.64 = 53,129.55/x
  3. Step 3: Cross multiply
    93,410.00x = 128,908.64 × 53,129.55
  4. Step 4: Simplify right side
    93,410.00x = 6,848,857,768.66
  5. Step 5: Solve for x
    x = 6,848,857,768.66/93,410.00
  6. Step 6: Final answer
    x = 73,320.40

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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.