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Finding the Fourth Proportional to 93,299.63, 139,971.31 and 30,970.13

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Solution

The fourth proportional to 93,299.63, 139,971.31 and 30,970.13 is: 46,462.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,299.63 : 139,971.31 = 30,970.13 : x
  2. Step 2: Convert to fraction form
    93,299.63/139,971.31 = 30,970.13/x
  3. Step 3: Cross multiply
    93,299.63x = 139,971.31 × 30,970.13
  4. Step 4: Simplify right side
    93,299.63x = 4,334,928,889.69
  5. Step 5: Solve for x
    x = 4,334,928,889.69/93,299.63
  6. Step 6: Final answer
    x = 46,462.45

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.