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Finding the Fourth Proportional to 94,971, 130,970.70 and 68,246.04

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Solution

The fourth proportional to 94,971, 130,970.70 and 68,246.04 is: 94,115.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    94,971 : 130,970.70 = 68,246.04 : x
  2. Step 2: Convert to fraction form
    94,971/130,970.70 = 68,246.04/x
  3. Step 3: Cross multiply
    94,971x = 130,970.70 × 68,246.04
  4. Step 4: Simplify right side
    94,971x = 8,938,231,631.03
  5. Step 5: Solve for x
    x = 8,938,231,631.03/94,971
  6. Step 6: Final answer
    x = 94,115.38

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.