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Finding the Fourth Proportional to 173,815.80, 243,867 and 173,815.80

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Solution

The fourth proportional to 173,815.80, 243,867 and 173,815.80 is: 243,867

Step by Step Solution

  1. Step 1: Write the proportion equation
    173,815.80 : 243,867 = 173,815.80 : x
  2. Step 2: Convert to fraction form
    173,815.80/243,867 = 173,815.80/x
  3. Step 3: Cross multiply
    173,815.80x = 243,867 × 173,815.80
  4. Step 4: Simplify right side
    173,815.80x = 42,387,937,698.60
  5. Step 5: Solve for x
    x = 42,387,937,698.60/173,815.80
  6. Step 6: Final answer
    x = 243,867

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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.