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Finding the Fourth Proportional to 181,666.80, 272,500.20 and 114,890.40

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Solution

The fourth proportional to 181,666.80, 272,500.20 and 114,890.40 is: 172,335.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    181,666.80 : 272,500.20 = 114,890.40 : x
  2. Step 2: Convert to fraction form
    181,666.80/272,500.20 = 114,890.40/x
  3. Step 3: Cross multiply
    181,666.80x = 272,500.20 × 114,890.40
  4. Step 4: Simplify right side
    181,666.80x = 31,307,656,978.08
  5. Step 5: Solve for x
    x = 31,307,656,978.08/181,666.80
  6. Step 6: Final answer
    x = 172,335.60

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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.