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Finding the Fourth Proportional to 363,362.20, 545,237.70 and 153,021.40

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Solution

The fourth proportional to 363,362.20, 545,237.70 and 153,021.40 is: 229,613.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    363,362.20 : 545,237.70 = 153,021.40 : x
  2. Step 2: Convert to fraction form
    363,362.20/545,237.70 = 153,021.40/x
  3. Step 3: Cross multiply
    363,362.20x = 545,237.70 × 153,021.40
  4. Step 4: Simplify right side
    363,362.20x = 83,433,036,186.78
  5. Step 5: Solve for x
    x = 83,433,036,186.78/363,362.20
  6. Step 6: Final answer
    x = 229,613.97

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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.