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Finding the Fourth Proportional to 319,007.76, 478,581.72 and 94,350.68

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Solution

The fourth proportional to 319,007.76, 478,581.72 and 94,350.68 is: 141,546.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    319,007.76 : 478,581.72 = 94,350.68 : x
  2. Step 2: Convert to fraction form
    319,007.76/478,581.72 = 94,350.68/x
  3. Step 3: Cross multiply
    319,007.76x = 478,581.72 × 94,350.68
  4. Step 4: Simplify right side
    319,007.76x = 45,154,510,717.57
  5. Step 5: Solve for x
    x = 45,154,510,717.57/319,007.76
  6. Step 6: Final answer
    x = 141,546.75

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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.