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Finding the Fourth Proportional to 96,399.60, 144,534.60 and 51,428.40

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Solution

The fourth proportional to 96,399.60, 144,534.60 and 51,428.40 is: 77,108.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    96,399.60 : 144,534.60 = 51,428.40 : x
  2. Step 2: Convert to fraction form
    96,399.60/144,534.60 = 51,428.40/x
  3. Step 3: Cross multiply
    96,399.60x = 144,534.60 × 51,428.40
  4. Step 4: Simplify right side
    96,399.60x = 7,433,183,222.64
  5. Step 5: Solve for x
    x = 7,433,183,222.64/96,399.60
  6. Step 6: Final answer
    x = 77,108.03

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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.