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Finding the Fourth Proportional to 248,050.55, 371,955.46 and 145,495.90

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Solution

The fourth proportional to 248,050.55, 371,955.46 and 145,495.90 is: 218,173.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    248,050.55 : 371,955.46 = 145,495.90 : x
  2. Step 2: Convert to fraction form
    248,050.55/371,955.46 = 145,495.90/x
  3. Step 3: Cross multiply
    248,050.55x = 371,955.46 × 145,495.90
  4. Step 4: Simplify right side
    248,050.55x = 54,117,994,412.61
  5. Step 5: Solve for x
    x = 54,117,994,412.61/248,050.55
  6. Step 6: Final answer
    x = 218,173.25

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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.