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Finding the Fourth Proportional to 172,312.04, 258,468.17 and 53,992.64

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Solution

The fourth proportional to 172,312.04, 258,468.17 and 53,992.64 is: 80,989.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,312.04 : 258,468.17 = 53,992.64 : x
  2. Step 2: Convert to fraction form
    172,312.04/258,468.17 = 53,992.64/x
  3. Step 3: Cross multiply
    172,312.04x = 258,468.17 × 53,992.64
  4. Step 4: Simplify right side
    172,312.04x = 13,955,379,230.48
  5. Step 5: Solve for x
    x = 13,955,379,230.48/172,312.04
  6. Step 6: Final answer
    x = 80,989.00

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1.5x scale

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.