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Finding the Fourth Proportional to 94,132, 129,905.52 and 51,690.08

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Solution

The fourth proportional to 94,132, 129,905.52 and 51,690.08 is: 71,334.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    94,132 : 129,905.52 = 51,690.08 : x
  2. Step 2: Convert to fraction form
    94,132/129,905.52 = 51,690.08/x
  3. Step 3: Cross multiply
    94,132x = 129,905.52 × 51,690.08
  4. Step 4: Simplify right side
    94,132x = 6,714,826,721.24
  5. Step 5: Solve for x
    x = 6,714,826,721.24/94,132
  6. Step 6: Final answer
    x = 71,334.16

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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.