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Finding the Fourth Proportional to 93,329.78, 128,795.10 and 59,795.78

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Solution

The fourth proportional to 93,329.78, 128,795.10 and 59,795.78 is: 82,518.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,329.78 : 128,795.10 = 59,795.78 : x
  2. Step 2: Convert to fraction form
    93,329.78/128,795.10 = 59,795.78/x
  3. Step 3: Cross multiply
    93,329.78x = 128,795.10 × 59,795.78
  4. Step 4: Simplify right side
    93,329.78x = 7,701,403,464.68
  5. Step 5: Solve for x
    x = 7,701,403,464.68/93,329.78
  6. Step 6: Final answer
    x = 82,518.18

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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.