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Finding the Fourth Proportional to 292,699.90, 439,197.47 and 115,334.20

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Solution

The fourth proportional to 292,699.90, 439,197.47 and 115,334.20 is: 173,059.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    292,699.90 : 439,197.47 = 115,334.20 : x
  2. Step 2: Convert to fraction form
    292,699.90/439,197.47 = 115,334.20/x
  3. Step 3: Cross multiply
    292,699.90x = 439,197.47 × 115,334.20
  4. Step 4: Simplify right side
    292,699.90x = 50,654,486,071.82
  5. Step 5: Solve for x
    x = 50,654,486,071.82/292,699.90
  6. Step 6: Final answer
    x = 173,059.46

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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.