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Finding the Fourth Proportional to 70,055.90, 105,076.08 and 25,075.46

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Solution

The fourth proportional to 70,055.90, 105,076.08 and 25,075.46 is: 37,610.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,055.90 : 105,076.08 = 25,075.46 : x
  2. Step 2: Convert to fraction form
    70,055.90/105,076.08 = 25,075.46/x
  3. Step 3: Cross multiply
    70,055.90x = 105,076.08 × 25,075.46
  4. Step 4: Simplify right side
    70,055.90x = 2,634,830,515.62
  5. Step 5: Solve for x
    x = 2,634,830,515.62/70,055.90
  6. Step 6: Final answer
    x = 37,610.40

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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.