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Finding the Fourth Proportional to 93,289.62, 128,793.04 and 61,513.93

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Solution

The fourth proportional to 93,289.62, 128,793.04 and 61,513.93 is: 84,924.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,289.62 : 128,793.04 = 61,513.93 : x
  2. Step 2: Convert to fraction form
    93,289.62/128,793.04 = 61,513.93/x
  3. Step 3: Cross multiply
    93,289.62x = 128,793.04 × 61,513.93
  4. Step 4: Simplify right side
    93,289.62x = 7,922,566,054.25
  5. Step 5: Solve for x
    x = 7,922,566,054.25/93,289.62
  6. Step 6: Final answer
    x = 84,924.41

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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.