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Finding the Fourth Proportional to 314,842.72, 472,337.94 and 125,314.60

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Solution

The fourth proportional to 314,842.72, 472,337.94 and 125,314.60 is: 188,001.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    314,842.72 : 472,337.94 = 125,314.60 : x
  2. Step 2: Convert to fraction form
    314,842.72/472,337.94 = 125,314.60/x
  3. Step 3: Cross multiply
    314,842.72x = 472,337.94 × 125,314.60
  4. Step 4: Simplify right side
    314,842.72x = 59,190,840,015.92
  5. Step 5: Solve for x
    x = 59,190,840,015.92/314,842.72
  6. Step 6: Final answer
    x = 188,001.30

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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.