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Finding the Fourth Proportional to 86,801.55, 119,798.91 and 54,973.41

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Solution

The fourth proportional to 86,801.55, 119,798.91 and 54,973.41 is: 75,871.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,801.55 : 119,798.91 = 54,973.41 : x
  2. Step 2: Convert to fraction form
    86,801.55/119,798.91 = 54,973.41/x
  3. Step 3: Cross multiply
    86,801.55x = 119,798.91 × 54,973.41
  4. Step 4: Simplify right side
    86,801.55x = 6,585,754,596.98
  5. Step 5: Solve for x
    x = 6,585,754,596.98/86,801.55
  6. Step 6: Final answer
    x = 75,871.39

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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.