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Finding the Fourth Proportional to 181,779.80, 272,442.90 and 93,068.60

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Solution

The fourth proportional to 181,779.80, 272,442.90 and 93,068.60 is: 139,486.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    181,779.80 : 272,442.90 = 93,068.60 : x
  2. Step 2: Convert to fraction form
    181,779.80/272,442.90 = 93,068.60/x
  3. Step 3: Cross multiply
    181,779.80x = 272,442.90 × 93,068.60
  4. Step 4: Simplify right side
    181,779.80x = 25,355,879,282.94
  5. Step 5: Solve for x
    x = 25,355,879,282.94/181,779.80
  6. Step 6: Final answer
    x = 139,486.78

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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.