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Finding the Fourth Proportional to 55,063.90, 75,945.90 and 37,130.50

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Solution

The fourth proportional to 55,063.90, 75,945.90 and 37,130.50 is: 51,211.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,063.90 : 75,945.90 = 37,130.50 : x
  2. Step 2: Convert to fraction form
    55,063.90/75,945.90 = 37,130.50/x
  3. Step 3: Cross multiply
    55,063.90x = 75,945.90 × 37,130.50
  4. Step 4: Simplify right side
    55,063.90x = 2,819,909,239.95
  5. Step 5: Solve for x
    x = 2,819,909,239.95/55,063.90
  6. Step 6: Final answer
    x = 51,211.58

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.