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Finding the Fourth Proportional to 104,765.74, 144,576.30 and 57,019.08

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Solution

The fourth proportional to 104,765.74, 144,576.30 and 57,019.08 is: 78,686.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,765.74 : 144,576.30 = 57,019.08 : x
  2. Step 2: Convert to fraction form
    104,765.74/144,576.30 = 57,019.08/x
  3. Step 3: Cross multiply
    104,765.74x = 144,576.30 × 57,019.08
  4. Step 4: Simplify right side
    104,765.74x = 8,243,607,615.80
  5. Step 5: Solve for x
    x = 8,243,607,615.80/104,765.74
  6. Step 6: Final answer
    x = 78,686.10

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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.