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Finding the Fourth Proportional to 155,421, 233,172.46 and 55,591.08

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Solution

The fourth proportional to 155,421, 233,172.46 and 55,591.08 is: 83,401.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    155,421 : 233,172.46 = 55,591.08 : x
  2. Step 2: Convert to fraction form
    155,421/233,172.46 = 55,591.08/x
  3. Step 3: Cross multiply
    155,421x = 233,172.46 × 55,591.08
  4. Step 4: Simplify right side
    155,421x = 12,962,308,877.66
  5. Step 5: Solve for x
    x = 12,962,308,877.66/155,421
  6. Step 6: Final answer
    x = 83,401.27

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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.