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Finding the Fourth Proportional to 72,055.76, 108,071.04 and 32,603.60

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Solution

The fourth proportional to 72,055.76, 108,071.04 and 32,603.60 is: 48,899.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,055.76 : 108,071.04 = 32,603.60 : x
  2. Step 2: Convert to fraction form
    72,055.76/108,071.04 = 32,603.60/x
  3. Step 3: Cross multiply
    72,055.76x = 108,071.04 × 32,603.60
  4. Step 4: Simplify right side
    72,055.76x = 3,523,504,959.74
  5. Step 5: Solve for x
    x = 3,523,504,959.74/72,055.76
  6. Step 6: Final answer
    x = 48,899.70

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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.