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Finding the Fourth Proportional to 363,397.36, 545,117.90 and 153,051.68

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Solution

The fourth proportional to 363,397.36, 545,117.90 and 153,051.68 is: 229,586.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    363,397.36 : 545,117.90 = 153,051.68 : x
  2. Step 2: Convert to fraction form
    363,397.36/545,117.90 = 153,051.68/x
  3. Step 3: Cross multiply
    363,397.36x = 545,117.90 × 153,051.68
  4. Step 4: Simplify right side
    363,397.36x = 83,431,210,393.07
  5. Step 5: Solve for x
    x = 83,431,210,393.07/363,397.36
  6. Step 6: Final answer
    x = 229,586.73

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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.