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Finding the Fourth Proportional to 250,751.72, 346,060.80 and 143,300.76

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Solution

The fourth proportional to 250,751.72, 346,060.80 and 143,300.76 is: 197,768.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    250,751.72 : 346,060.80 = 143,300.76 : x
  2. Step 2: Convert to fraction form
    250,751.72/346,060.80 = 143,300.76/x
  3. Step 3: Cross multiply
    250,751.72x = 346,060.80 × 143,300.76
  4. Step 4: Simplify right side
    250,751.72x = 49,590,775,646.21
  5. Step 5: Solve for x
    x = 49,590,775,646.21/250,751.72
  6. Step 6: Final answer
    x = 197,768.44

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.