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Finding the Fourth Proportional to 319,203.72, 478,804.50 and 94,565.88

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Solution

The fourth proportional to 319,203.72, 478,804.50 and 94,565.88 is: 141,848.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    319,203.72 : 478,804.50 = 94,565.88 : x
  2. Step 2: Convert to fraction form
    319,203.72/478,804.50 = 94,565.88/x
  3. Step 3: Cross multiply
    319,203.72x = 478,804.50 × 94,565.88
  4. Step 4: Simplify right side
    319,203.72x = 45,278,568,890.46
  5. Step 5: Solve for x
    x = 45,278,568,890.46/319,203.72
  6. Step 6: Final answer
    x = 141,848.50

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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.