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Finding the Fourth Proportional to 162,056.80, 242,566.80 and 115,400.80

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Solution

The fourth proportional to 162,056.80, 242,566.80 and 115,400.80 is: 172,732.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    162,056.80 : 242,566.80 = 115,400.80 : x
  2. Step 2: Convert to fraction form
    162,056.80/242,566.80 = 115,400.80/x
  3. Step 3: Cross multiply
    162,056.80x = 242,566.80 × 115,400.80
  4. Step 4: Simplify right side
    162,056.80x = 27,992,402,773.44
  5. Step 5: Solve for x
    x = 27,992,402,773.44/162,056.80
  6. Step 6: Final answer
    x = 172,732.05

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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.