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Finding the Fourth Proportional to 292,779.25, 404,035.91 and 158,643.25

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Solution

The fourth proportional to 292,779.25, 404,035.91 and 158,643.25 is: 218,927.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    292,779.25 : 404,035.91 = 158,643.25 : x
  2. Step 2: Convert to fraction form
    292,779.25/404,035.91 = 158,643.25/x
  3. Step 3: Cross multiply
    292,779.25x = 404,035.91 × 158,643.25
  4. Step 4: Simplify right side
    292,779.25x = 64,097,569,879.11
  5. Step 5: Solve for x
    x = 64,097,569,879.11/292,779.25
  6. Step 6: Final answer
    x = 218,927.98

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.