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Finding the Fourth Proportional to 319,253.25, 478,955.06 and 94,615.55

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Solution

The fourth proportional to 319,253.25, 478,955.06 and 94,615.55 is: 141,945.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    319,253.25 : 478,955.06 = 94,615.55 : x
  2. Step 2: Convert to fraction form
    319,253.25/478,955.06 = 94,615.55/x
  3. Step 3: Cross multiply
    319,253.25x = 478,955.06 × 94,615.55
  4. Step 4: Simplify right side
    319,253.25x = 45,316,593,559.33
  5. Step 5: Solve for x
    x = 45,316,593,559.33/319,253.25
  6. Step 6: Final answer
    x = 141,945.60

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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.