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Finding the Fourth Proportional to 79,038.30, 118,619.70 and 34,695.66

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Solution

The fourth proportional to 79,038.30, 118,619.70 and 34,695.66 is: 52,070.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,038.30 : 118,619.70 = 34,695.66 : x
  2. Step 2: Convert to fraction form
    79,038.30/118,619.70 = 34,695.66/x
  3. Step 3: Cross multiply
    79,038.30x = 118,619.70 × 34,695.66
  4. Step 4: Simplify right side
    79,038.30x = 4,115,588,780.50
  5. Step 5: Solve for x
    x = 4,115,588,780.50/79,038.30
  6. Step 6: Final answer
    x = 52,070.82

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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.