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Finding the Fourth Proportional to 141,393.84, 212,090.76 and 57,191.28

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Solution

The fourth proportional to 141,393.84, 212,090.76 and 57,191.28 is: 85,786.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,393.84 : 212,090.76 = 57,191.28 : x
  2. Step 2: Convert to fraction form
    141,393.84/212,090.76 = 57,191.28/x
  3. Step 3: Cross multiply
    141,393.84x = 212,090.76 × 57,191.28
  4. Step 4: Simplify right side
    141,393.84x = 12,129,742,040.57
  5. Step 5: Solve for x
    x = 12,129,742,040.57/141,393.84
  6. Step 6: Final answer
    x = 85,786.92

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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.