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Finding the Fourth Proportional to 295,354.09, 443,009.71 and 115,405.69

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Solution

The fourth proportional to 295,354.09, 443,009.71 and 115,405.69 is: 173,100.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    295,354.09 : 443,009.71 = 115,405.69 : x
  2. Step 2: Convert to fraction form
    295,354.09/443,009.71 = 115,405.69/x
  3. Step 3: Cross multiply
    295,354.09x = 443,009.71 × 115,405.69
  4. Step 4: Simplify right side
    295,354.09x = 51,125,841,259.25
  5. Step 5: Solve for x
    x = 51,125,841,259.25/295,354.09
  6. Step 6: Final answer
    x = 173,100.16

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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.