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Finding the Fourth Proportional to 74,225.70, 111,338.55 and 65,009.70

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Solution

The fourth proportional to 74,225.70, 111,338.55 and 65,009.70 is: 97,514.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,225.70 : 111,338.55 = 65,009.70 : x
  2. Step 2: Convert to fraction form
    74,225.70/111,338.55 = 65,009.70/x
  3. Step 3: Cross multiply
    74,225.70x = 111,338.55 × 65,009.70
  4. Step 4: Simplify right side
    74,225.70x = 7,238,085,733.94
  5. Step 5: Solve for x
    x = 7,238,085,733.94/74,225.70
  6. Step 6: Final answer
    x = 97,514.55

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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.