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Finding the Fourth Proportional to 75,090.90, 103,584.57 and 48,237.63

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Solution

The fourth proportional to 75,090.90, 103,584.57 and 48,237.63 is: 66,541.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,090.90 : 103,584.57 = 48,237.63 : x
  2. Step 2: Convert to fraction form
    75,090.90/103,584.57 = 48,237.63/x
  3. Step 3: Cross multiply
    75,090.90x = 103,584.57 × 48,237.63
  4. Step 4: Simplify right side
    75,090.90x = 4,996,674,161.37
  5. Step 5: Solve for x
    x = 4,996,674,161.37/75,090.90
  6. Step 6: Final answer
    x = 66,541.67

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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.