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Finding the Fourth Proportional to 181,752.10, 272,640.30 and 61,807.30

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Solution

The fourth proportional to 181,752.10, 272,640.30 and 61,807.30 is: 92,715.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    181,752.10 : 272,640.30 = 61,807.30 : x
  2. Step 2: Convert to fraction form
    181,752.10/272,640.30 = 61,807.30/x
  3. Step 3: Cross multiply
    181,752.10x = 272,640.30 × 61,807.30
  4. Step 4: Simplify right side
    181,752.10x = 16,851,160,814.19
  5. Step 5: Solve for x
    x = 16,851,160,814.19/181,752.10
  6. Step 6: Final answer
    x = 92,715.08

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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.