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Finding the Fourth Proportional to 235,445.13, 325,038.42 and 188,999.33

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Solution

The fourth proportional to 235,445.13, 325,038.42 and 188,999.33 is: 260,918.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    235,445.13 : 325,038.42 = 188,999.33 : x
  2. Step 2: Convert to fraction form
    235,445.13/325,038.42 = 188,999.33/x
  3. Step 3: Cross multiply
    235,445.13x = 325,038.42 × 188,999.33
  4. Step 4: Simplify right side
    235,445.13x = 61,432,041,979.07
  5. Step 5: Solve for x
    x = 61,432,041,979.07/235,445.13
  6. Step 6: Final answer
    x = 260,918.72

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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.