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Finding the Fourth Proportional to 181,843.70, 250,985.10 and 118,070.78

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Solution

The fourth proportional to 181,843.70, 250,985.10 and 118,070.78 is: 162,964.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    181,843.70 : 250,985.10 = 118,070.78 : x
  2. Step 2: Convert to fraction form
    181,843.70/250,985.10 = 118,070.78/x
  3. Step 3: Cross multiply
    181,843.70x = 250,985.10 × 118,070.78
  4. Step 4: Simplify right side
    181,843.70x = 29,634,006,525.38
  5. Step 5: Solve for x
    x = 29,634,006,525.38/181,843.70
  6. Step 6: Final answer
    x = 162,964.16

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.