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Finding the Fourth Proportional to 352,988.16, 487,123.52 and 194,012.16

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Solution

The fourth proportional to 352,988.16, 487,123.52 and 194,012.16 is: 267,736.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    352,988.16 : 487,123.52 = 194,012.16 : x
  2. Step 2: Convert to fraction form
    352,988.16/487,123.52 = 194,012.16/x
  3. Step 3: Cross multiply
    352,988.16x = 487,123.52 × 194,012.16
  4. Step 4: Simplify right side
    352,988.16x = 94,507,886,302.00
  5. Step 5: Solve for x
    x = 94,507,886,302.00/352,988.16
  6. Step 6: Final answer
    x = 267,736.70

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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.