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Finding the Fourth Proportional to 292,272.60, 438,408.90 and 114,720.60

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Solution

The fourth proportional to 292,272.60, 438,408.90 and 114,720.60 is: 172,080.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    292,272.60 : 438,408.90 = 114,720.60 : x
  2. Step 2: Convert to fraction form
    292,272.60/438,408.90 = 114,720.60/x
  3. Step 3: Cross multiply
    292,272.60x = 438,408.90 × 114,720.60
  4. Step 4: Simplify right side
    292,272.60x = 50,294,532,053.34
  5. Step 5: Solve for x
    x = 50,294,532,053.34/292,272.60
  6. Step 6: Final answer
    x = 172,080.90

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1.5x scale

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.