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Finding the Fourth Proportional to 292,628.66, 439,127.50 and 115,112.60

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Solution

The fourth proportional to 292,628.66, 439,127.50 and 115,112.60 is: 172,741.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    292,628.66 : 439,127.50 = 115,112.60 : x
  2. Step 2: Convert to fraction form
    292,628.66/439,127.50 = 115,112.60/x
  3. Step 3: Cross multiply
    292,628.66x = 439,127.50 × 115,112.60
  4. Step 4: Simplify right side
    292,628.66x = 50,549,108,256.50
  5. Step 5: Solve for x
    x = 50,549,108,256.50/292,628.66
  6. Step 6: Final answer
    x = 172,741.48

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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.