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Finding the Fourth Proportional to 238,603.66, 357,962.49 and 70,120.28

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Solution

The fourth proportional to 238,603.66, 357,962.49 and 70,120.28 is: 105,197.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    238,603.66 : 357,962.49 = 70,120.28 : x
  2. Step 2: Convert to fraction form
    238,603.66/357,962.49 = 70,120.28/x
  3. Step 3: Cross multiply
    238,603.66x = 357,962.49 × 70,120.28
  4. Step 4: Simplify right side
    238,603.66x = 25,100,430,923.20
  5. Step 5: Solve for x
    x = 25,100,430,923.20/238,603.66
  6. Step 6: Final answer
    x = 105,197.18

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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.