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Finding the Fourth Proportional to 148,855.80, 223,283.70 and 38,047.80

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Solution

The fourth proportional to 148,855.80, 223,283.70 and 38,047.80 is: 57,071.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    148,855.80 : 223,283.70 = 38,047.80 : x
  2. Step 2: Convert to fraction form
    148,855.80/223,283.70 = 38,047.80/x
  3. Step 3: Cross multiply
    148,855.80x = 223,283.70 × 38,047.80
  4. Step 4: Simplify right side
    148,855.80x = 8,495,453,560.86
  5. Step 5: Solve for x
    x = 8,495,453,560.86/148,855.80
  6. Step 6: Final answer
    x = 57,071.70

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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.