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Finding the Fourth Proportional to 155,661.40, 233,492.10 and 141,883.30

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Solution

The fourth proportional to 155,661.40, 233,492.10 and 141,883.30 is: 212,824.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    155,661.40 : 233,492.10 = 141,883.30 : x
  2. Step 2: Convert to fraction form
    155,661.40/233,492.10 = 141,883.30/x
  3. Step 3: Cross multiply
    155,661.40x = 233,492.10 × 141,883.30
  4. Step 4: Simplify right side
    155,661.40x = 33,128,629,671.93
  5. Step 5: Solve for x
    x = 33,128,629,671.93/155,661.40
  6. Step 6: Final answer
    x = 212,824.95

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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.