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Finding the Fourth Proportional to 319,505.44, 479,328.72 and 94,884.16

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Solution

The fourth proportional to 319,505.44, 479,328.72 and 94,884.16 is: 142,347.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    319,505.44 : 479,328.72 = 94,884.16 : x
  2. Step 2: Convert to fraction form
    319,505.44/479,328.72 = 94,884.16/x
  3. Step 3: Cross multiply
    319,505.44x = 479,328.72 × 94,884.16
  4. Step 4: Simplify right side
    319,505.44x = 45,480,702,961.08
  5. Step 5: Solve for x
    x = 45,480,702,961.08/319,505.44
  6. Step 6: Final answer
    x = 142,347.19

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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.