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Finding the Fourth Proportional to 173,842.20, 243,729 and 173,842.20

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Solution

The fourth proportional to 173,842.20, 243,729 and 173,842.20 is: 243,729

Step by Step Solution

  1. Step 1: Write the proportion equation
    173,842.20 : 243,729 = 173,842.20 : x
  2. Step 2: Convert to fraction form
    173,842.20/243,729 = 173,842.20/x
  3. Step 3: Cross multiply
    173,842.20x = 243,729 × 173,842.20
  4. Step 4: Simplify right side
    173,842.20x = 42,370,385,563.80
  5. Step 5: Solve for x
    x = 42,370,385,563.80/173,842.20
  6. Step 6: Final answer
    x = 243,729

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.