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Finding the Fourth Proportional to 159,852.33, 220,601.55 and 87,259.52

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Solution

The fourth proportional to 159,852.33, 220,601.55 and 87,259.52 is: 120,421.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,852.33 : 220,601.55 = 87,259.52 : x
  2. Step 2: Convert to fraction form
    159,852.33/220,601.55 = 87,259.52/x
  3. Step 3: Cross multiply
    159,852.33x = 220,601.55 × 87,259.52
  4. Step 4: Simplify right side
    159,852.33x = 19,249,586,242.98
  5. Step 5: Solve for x
    x = 19,249,586,242.98/159,852.33
  6. Step 6: Final answer
    x = 120,421.06

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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.