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Finding the Fourth Proportional to 133,071.60, 199,445.40 and 58,033.20

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Solution

The fourth proportional to 133,071.60, 199,445.40 and 58,033.20 is: 86,979.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,071.60 : 199,445.40 = 58,033.20 : x
  2. Step 2: Convert to fraction form
    133,071.60/199,445.40 = 58,033.20/x
  3. Step 3: Cross multiply
    133,071.60x = 199,445.40 × 58,033.20
  4. Step 4: Simplify right side
    133,071.60x = 11,574,454,787.28
  5. Step 5: Solve for x
    x = 11,574,454,787.28/133,071.60
  6. Step 6: Final answer
    x = 86,979.15

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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.