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Finding the Fourth Proportional to 85,289.82, 117,700.07 and 47,048.51

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Solution

The fourth proportional to 85,289.82, 117,700.07 and 47,048.51 is: 64,927.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,289.82 : 117,700.07 = 47,048.51 : x
  2. Step 2: Convert to fraction form
    85,289.82/117,700.07 = 47,048.51/x
  3. Step 3: Cross multiply
    85,289.82x = 117,700.07 × 47,048.51
  4. Step 4: Simplify right side
    85,289.82x = 5,537,612,096.65
  5. Step 5: Solve for x
    x = 5,537,612,096.65/85,289.82
  6. Step 6: Final answer
    x = 64,927.00

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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.