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Finding the Fourth Proportional to 250,758.38, 346,070.88 and 143,307.88

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Solution

The fourth proportional to 250,758.38, 346,070.88 and 143,307.88 is: 197,778.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    250,758.38 : 346,070.88 = 143,307.88 : x
  2. Step 2: Convert to fraction form
    250,758.38/346,070.88 = 143,307.88/x
  3. Step 3: Cross multiply
    250,758.38x = 346,070.88 × 143,307.88
  4. Step 4: Simplify right side
    250,758.38x = 49,594,685,224.01
  5. Step 5: Solve for x
    x = 49,594,685,224.01/250,758.38
  6. Step 6: Final answer
    x = 197,778.77

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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.