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Finding the Fourth Proportional to 172,871.80, 259,526.40 and 92,973.40

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Solution

The fourth proportional to 172,871.80, 259,526.40 and 92,973.40 is: 139,577.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,871.80 : 259,526.40 = 92,973.40 : x
  2. Step 2: Convert to fraction form
    172,871.80/259,526.40 = 92,973.40/x
  3. Step 3: Cross multiply
    172,871.80x = 259,526.40 × 92,973.40
  4. Step 4: Simplify right side
    172,871.80x = 24,129,051,797.76
  5. Step 5: Solve for x
    x = 24,129,051,797.76/172,871.80
  6. Step 6: Final answer
    x = 139,577.72

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.