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Finding the Fourth Proportional to 319,366.58, 478,968.17 and 94,674.51

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Solution

The fourth proportional to 319,366.58, 478,968.17 and 94,674.51 is: 141,987.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    319,366.58 : 478,968.17 = 94,674.51 : x
  2. Step 2: Convert to fraction form
    319,366.58/478,968.17 = 94,674.51/x
  3. Step 3: Cross multiply
    319,366.58x = 478,968.17 × 94,674.51
  4. Step 4: Simplify right side
    319,366.58x = 45,346,076,326.97
  5. Step 5: Solve for x
    x = 45,346,076,326.97/319,366.58
  6. Step 6: Final answer
    x = 141,987.55

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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.