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Finding the Fourth Proportional to 116,779.62, 161,155.88 and 63,064.64

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Solution

The fourth proportional to 116,779.62, 161,155.88 and 63,064.64 is: 87,029.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    116,779.62 : 161,155.88 = 63,064.64 : x
  2. Step 2: Convert to fraction form
    116,779.62/161,155.88 = 63,064.64/x
  3. Step 3: Cross multiply
    116,779.62x = 161,155.88 × 63,064.64
  4. Step 4: Simplify right side
    116,779.62x = 10,163,236,645.19
  5. Step 5: Solve for x
    x = 10,163,236,645.19/116,779.62
  6. Step 6: Final answer
    x = 87,029.20

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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.