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Finding the Fourth Proportional to 55,455.40, 83,193.90 and 23,865.40

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Solution

The fourth proportional to 55,455.40, 83,193.90 and 23,865.40 is: 35,802.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,455.40 : 83,193.90 = 23,865.40 : x
  2. Step 2: Convert to fraction form
    55,455.40/83,193.90 = 23,865.40/x
  3. Step 3: Cross multiply
    55,455.40x = 83,193.90 × 23,865.40
  4. Step 4: Simplify right side
    55,455.40x = 1,985,455,701.06
  5. Step 5: Solve for x
    x = 1,985,455,701.06/55,455.40
  6. Step 6: Final answer
    x = 35,802.75

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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.