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Finding the Fourth Proportional to 173,878.70, 243,780.10 and 173,878.70

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Solution

The fourth proportional to 173,878.70, 243,780.10 and 173,878.70 is: 243,780.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    173,878.70 : 243,780.10 = 173,878.70 : x
  2. Step 2: Convert to fraction form
    173,878.70/243,780.10 = 173,878.70/x
  3. Step 3: Cross multiply
    173,878.70x = 243,780.10 × 173,878.70
  4. Step 4: Simplify right side
    173,878.70x = 42,388,166,873.87
  5. Step 5: Solve for x
    x = 42,388,166,873.87/173,878.70
  6. Step 6: Final answer
    x = 243,780.10

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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.