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Finding the Fourth Proportional to 202,303.93, 279,291.29 and 121,751.25

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Solution

The fourth proportional to 202,303.93, 279,291.29 and 121,751.25 is: 168,084.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    202,303.93 : 279,291.29 = 121,751.25 : x
  2. Step 2: Convert to fraction form
    202,303.93/279,291.29 = 121,751.25/x
  3. Step 3: Cross multiply
    202,303.93x = 279,291.29 × 121,751.25
  4. Step 4: Simplify right side
    202,303.93x = 34,004,063,062.86
  5. Step 5: Solve for x
    x = 34,004,063,062.86/202,303.93
  6. Step 6: Final answer
    x = 168,084.05

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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.