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Finding the Fourth Proportional to 172,779.86, 238,435.17 and 97,352.66

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Solution

The fourth proportional to 172,779.86, 238,435.17 and 97,352.66 is: 134,346.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,779.86 : 238,435.17 = 97,352.66 : x
  2. Step 2: Convert to fraction form
    172,779.86/238,435.17 = 97,352.66/x
  3. Step 3: Cross multiply
    172,779.86x = 238,435.17 × 97,352.66
  4. Step 4: Simplify right side
    172,779.86x = 23,212,298,037.05
  5. Step 5: Solve for x
    x = 23,212,298,037.05/172,779.86
  6. Step 6: Final answer
    x = 134,346.09

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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.