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Finding the Fourth Proportional to 145,884.60, 218,826.90 and 46,114.87

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Solution

The fourth proportional to 145,884.60, 218,826.90 and 46,114.87 is: 69,172.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,884.60 : 218,826.90 = 46,114.87 : x
  2. Step 2: Convert to fraction form
    145,884.60/218,826.90 = 46,114.87/x
  3. Step 3: Cross multiply
    145,884.60x = 218,826.90 × 46,114.87
  4. Step 4: Simplify right side
    145,884.60x = 10,091,174,046.00
  5. Step 5: Solve for x
    x = 10,091,174,046.00/145,884.60
  6. Step 6: Final answer
    x = 69,172.31

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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.