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Finding the Fourth Proportional to 73,503.64, 110,116.72 and 43,428.14

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Solution

The fourth proportional to 73,503.64, 110,116.72 and 43,428.14 is: 65,060.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,503.64 : 110,116.72 = 43,428.14 : x
  2. Step 2: Convert to fraction form
    73,503.64/110,116.72 = 43,428.14/x
  3. Step 3: Cross multiply
    73,503.64x = 110,116.72 × 43,428.14
  4. Step 4: Simplify right side
    73,503.64x = 4,782,164,332.50
  5. Step 5: Solve for x
    x = 4,782,164,332.50/73,503.64
  6. Step 6: Final answer
    x = 65,060.24

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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.