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Finding the Fourth Proportional to 169,696.40, 254,479.80 and 51,328.40

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Solution

The fourth proportional to 169,696.40, 254,479.80 and 51,328.40 is: 76,973.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    169,696.40 : 254,479.80 = 51,328.40 : x
  2. Step 2: Convert to fraction form
    169,696.40/254,479.80 = 51,328.40/x
  3. Step 3: Cross multiply
    169,696.40x = 254,479.80 × 51,328.40
  4. Step 4: Simplify right side
    169,696.40x = 13,062,040,966.32
  5. Step 5: Solve for x
    x = 13,062,040,966.32/169,696.40
  6. Step 6: Final answer
    x = 76,973.00

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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.