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Finding the Fourth Proportional to 93,355.36, 128,829.81 and 53,069.12

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Solution

The fourth proportional to 93,355.36, 128,829.81 and 53,069.12 is: 73,235.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,355.36 : 128,829.81 = 53,069.12 : x
  2. Step 2: Convert to fraction form
    93,355.36/128,829.81 = 53,069.12/x
  3. Step 3: Cross multiply
    93,355.36x = 128,829.81 × 53,069.12
  4. Step 4: Simplify right side
    93,355.36x = 6,836,884,385.93
  5. Step 5: Solve for x
    x = 6,836,884,385.93/93,355.36
  6. Step 6: Final answer
    x = 73,235.05

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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.