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Finding the Fourth Proportional to 245,778.90, 368,888.04 and 125,917.50

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Solution

The fourth proportional to 245,778.90, 368,888.04 and 125,917.50 is: 188,988.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    245,778.90 : 368,888.04 = 125,917.50 : x
  2. Step 2: Convert to fraction form
    245,778.90/368,888.04 = 125,917.50/x
  3. Step 3: Cross multiply
    245,778.90x = 368,888.04 × 125,917.50
  4. Step 4: Simplify right side
    245,778.90x = 46,449,459,776.70
  5. Step 5: Solve for x
    x = 46,449,459,776.70/245,778.90
  6. Step 6: Final answer
    x = 188,988.80

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.