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Finding the Fourth Proportional to 178,000.90, 248,734.70 and 178,000.90

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Solution

The fourth proportional to 178,000.90, 248,734.70 and 178,000.90 is: 248,734.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    178,000.90 : 248,734.70 = 178,000.90 : x
  2. Step 2: Convert to fraction form
    178,000.90/248,734.70 = 178,000.90/x
  3. Step 3: Cross multiply
    178,000.90x = 248,734.70 × 178,000.90
  4. Step 4: Simplify right side
    178,000.90x = 44,275,000,461.23
  5. Step 5: Solve for x
    x = 44,275,000,461.23/178,000.90
  6. Step 6: Final answer
    x = 248,734.70

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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.