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Finding the Fourth Proportional to 104,332.62, 143,822.03 and 81,632.19

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Solution

The fourth proportional to 104,332.62, 143,822.03 and 81,632.19 is: 112,529.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,332.62 : 143,822.03 = 81,632.19 : x
  2. Step 2: Convert to fraction form
    104,332.62/143,822.03 = 81,632.19/x
  3. Step 3: Cross multiply
    104,332.62x = 143,822.03 × 81,632.19
  4. Step 4: Simplify right side
    104,332.62x = 11,740,506,870.98
  5. Step 5: Solve for x
    x = 11,740,506,870.98/104,332.62
  6. Step 6: Final answer
    x = 112,529.59

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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.