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Finding the Fourth Proportional to 319,784.81, 479,593.65 and 95,084.74

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Solution

The fourth proportional to 319,784.81, 479,593.65 and 95,084.74 is: 142,602.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    319,784.81 : 479,593.65 = 95,084.74 : x
  2. Step 2: Convert to fraction form
    319,784.81/479,593.65 = 95,084.74/x
  3. Step 3: Cross multiply
    319,784.81x = 479,593.65 × 95,084.74
  4. Step 4: Simplify right side
    319,784.81x = 45,602,037,515.90
  5. Step 5: Solve for x
    x = 45,602,037,515.90/319,784.81
  6. Step 6: Final answer
    x = 142,602.26

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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.