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Finding the Fourth Proportional to 316,743.80, 474,852.90 and 117,026.60

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Solution

The fourth proportional to 316,743.80, 474,852.90 and 117,026.60 is: 175,442.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    316,743.80 : 474,852.90 = 117,026.60 : x
  2. Step 2: Convert to fraction form
    316,743.80/474,852.90 = 117,026.60/x
  3. Step 3: Cross multiply
    316,743.80x = 474,852.90 × 117,026.60
  4. Step 4: Simplify right side
    316,743.80x = 55,570,420,387.14
  5. Step 5: Solve for x
    x = 55,570,420,387.14/316,743.80
  6. Step 6: Final answer
    x = 175,442.80

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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.