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Finding the Fourth Proportional to 319,304.66, 478,958.88 and 94,667.06

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Solution

The fourth proportional to 319,304.66, 478,958.88 and 94,667.06 is: 142,001.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    319,304.66 : 478,958.88 = 94,667.06 : x
  2. Step 2: Convert to fraction form
    319,304.66/478,958.88 = 94,667.06/x
  3. Step 3: Cross multiply
    319,304.66x = 478,958.88 × 94,667.06
  4. Step 4: Simplify right side
    319,304.66x = 45,341,626,635.70
  5. Step 5: Solve for x
    x = 45,341,626,635.70/319,304.66
  6. Step 6: Final answer
    x = 142,001.15

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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.