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Finding the Fourth Proportional to 313,291.54, 432,342.66 and 170,051.55

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Solution

The fourth proportional to 313,291.54, 432,342.66 and 170,051.55 is: 234,671.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    313,291.54 : 432,342.66 = 170,051.55 : x
  2. Step 2: Convert to fraction form
    313,291.54/432,342.66 = 170,051.55/x
  3. Step 3: Cross multiply
    313,291.54x = 432,342.66 × 170,051.55
  4. Step 4: Simplify right side
    313,291.54x = 73,520,539,464.12
  5. Step 5: Solve for x
    x = 73,520,539,464.12/313,291.54
  6. Step 6: Final answer
    x = 234,671.32

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.