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Finding the Fourth Proportional to 94,685.94, 142,116.48 and 47,971.62

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Solution

The fourth proportional to 94,685.94, 142,116.48 and 47,971.62 is: 72,001.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    94,685.94 : 142,116.48 = 47,971.62 : x
  2. Step 2: Convert to fraction form
    94,685.94/142,116.48 = 47,971.62/x
  3. Step 3: Cross multiply
    94,685.94x = 142,116.48 × 47,971.62
  4. Step 4: Simplify right side
    94,685.94x = 6,817,557,774.30
  5. Step 5: Solve for x
    x = 6,817,557,774.30/94,685.94
  6. Step 6: Final answer
    x = 72,001.80

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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.