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Finding the Fourth Proportional to 233,047.80, 349,571.70 and 99,905.40

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Solution

The fourth proportional to 233,047.80, 349,571.70 and 99,905.40 is: 149,858.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    233,047.80 : 349,571.70 = 99,905.40 : x
  2. Step 2: Convert to fraction form
    233,047.80/349,571.70 = 99,905.40/x
  3. Step 3: Cross multiply
    233,047.80x = 349,571.70 × 99,905.40
  4. Step 4: Simplify right side
    233,047.80x = 34,924,100,517.18
  5. Step 5: Solve for x
    x = 34,924,100,517.18/233,047.80
  6. Step 6: Final answer
    x = 149,858.10

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1.5x scale

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.