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Finding the Fourth Proportional to 173,431.80, 243,329.40 and 173,431.80

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Solution

The fourth proportional to 173,431.80, 243,329.40 and 173,431.80 is: 243,329.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    173,431.80 : 243,329.40 = 173,431.80 : x
  2. Step 2: Convert to fraction form
    173,431.80/243,329.40 = 173,431.80/x
  3. Step 3: Cross multiply
    173,431.80x = 243,329.40 × 173,431.80
  4. Step 4: Simplify right side
    173,431.80x = 42,201,055,834.92
  5. Step 5: Solve for x
    x = 42,201,055,834.92/173,431.80
  6. Step 6: Final answer
    x = 243,329.40

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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.