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Finding the Fourth Proportional to 355,258.40, 532,863.30 and 115,368.80

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Solution

The fourth proportional to 355,258.40, 532,863.30 and 115,368.80 is: 173,045.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    355,258.40 : 532,863.30 = 115,368.80 : x
  2. Step 2: Convert to fraction form
    355,258.40/532,863.30 = 115,368.80/x
  3. Step 3: Cross multiply
    355,258.40x = 532,863.30 × 115,368.80
  4. Step 4: Simplify right side
    355,258.40x = 61,475,799,485.04
  5. Step 5: Solve for x
    x = 61,475,799,485.04/355,258.40
  6. Step 6: Final answer
    x = 173,045.31

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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.