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Finding the Fourth Proportional to 148,871.80, 223,307.70 and 49,047.40

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Solution

The fourth proportional to 148,871.80, 223,307.70 and 49,047.40 is: 73,571.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    148,871.80 : 223,307.70 = 49,047.40 : x
  2. Step 2: Convert to fraction form
    148,871.80/223,307.70 = 49,047.40/x
  3. Step 3: Cross multiply
    148,871.80x = 223,307.70 × 49,047.40
  4. Step 4: Simplify right side
    148,871.80x = 10,952,662,084.98
  5. Step 5: Solve for x
    x = 10,952,662,084.98/148,871.80
  6. Step 6: Final answer
    x = 73,571.10

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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.