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Finding the Fourth Proportional to 82,011.46, 122,567.79 and 59,871.46

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Solution

The fourth proportional to 82,011.46, 122,567.79 and 59,871.46 is: 89,479.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,011.46 : 122,567.79 = 59,871.46 : x
  2. Step 2: Convert to fraction form
    82,011.46/122,567.79 = 59,871.46/x
  3. Step 3: Cross multiply
    82,011.46x = 122,567.79 × 59,871.46
  4. Step 4: Simplify right side
    82,011.46x = 7,338,312,536.27
  5. Step 5: Solve for x
    x = 7,338,312,536.27/82,011.46
  6. Step 6: Final answer
    x = 89,479.11

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.