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Finding the Fourth Proportional to 172,485.93, 258,421.08 and 93,549.81

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Solution

The fourth proportional to 172,485.93, 258,421.08 and 93,549.81 is: 140,157.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,485.93 : 258,421.08 = 93,549.81 : x
  2. Step 2: Convert to fraction form
    172,485.93/258,421.08 = 93,549.81/x
  3. Step 3: Cross multiply
    172,485.93x = 258,421.08 × 93,549.81
  4. Step 4: Simplify right side
    172,485.93x = 24,175,242,933.99
  5. Step 5: Solve for x
    x = 24,175,242,933.99/172,485.93
  6. Step 6: Final answer
    x = 140,157.77

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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.