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Finding the Fourth Proportional to 85,123.65, 117,469.54 and 46,882.47

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Solution

The fourth proportional to 85,123.65, 117,469.54 and 46,882.47 is: 64,697.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,123.65 : 117,469.54 = 46,882.47 : x
  2. Step 2: Convert to fraction form
    85,123.65/117,469.54 = 46,882.47/x
  3. Step 3: Cross multiply
    85,123.65x = 117,469.54 × 46,882.47
  4. Step 4: Simplify right side
    85,123.65x = 5,507,262,184.96
  5. Step 5: Solve for x
    x = 5,507,262,184.96/85,123.65
  6. Step 6: Final answer
    x = 64,697.20

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1.5x scale

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.