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Finding the Fourth Proportional to 319,569.76, 479,272.62 and 94,878.06

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Solution

The fourth proportional to 319,569.76, 479,272.62 and 94,878.06 is: 142,292.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    319,569.76 : 479,272.62 = 94,878.06 : x
  2. Step 2: Convert to fraction form
    319,569.76/479,272.62 = 94,878.06/x
  3. Step 3: Cross multiply
    319,569.76x = 479,272.62 × 94,878.06
  4. Step 4: Simplify right side
    319,569.76x = 45,472,456,036.35
  5. Step 5: Solve for x
    x = 45,472,456,036.35/319,569.76
  6. Step 6: Final answer
    x = 142,292.74

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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.