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Finding the Fourth Proportional to 366,651.27, 549,979.34 and 142,036.65

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Solution

The fourth proportional to 366,651.27, 549,979.34 and 142,036.65 is: 213,055.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    366,651.27 : 549,979.34 = 142,036.65 : x
  2. Step 2: Convert to fraction form
    366,651.27/549,979.34 = 142,036.65/x
  3. Step 3: Cross multiply
    366,651.27x = 549,979.34 × 142,036.65
  4. Step 4: Simplify right side
    366,651.27x = 78,117,222,312.63
  5. Step 5: Solve for x
    x = 78,117,222,312.63/366,651.27
  6. Step 6: Final answer
    x = 213,055.92

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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.