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Finding the Fourth Proportional to 191,573.85, 287,395.63 and 79,193.03

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Solution

The fourth proportional to 191,573.85, 287,395.63 and 79,193.03 is: 118,803.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    191,573.85 : 287,395.63 = 79,193.03 : x
  2. Step 2: Convert to fraction form
    191,573.85/287,395.63 = 79,193.03/x
  3. Step 3: Cross multiply
    191,573.85x = 287,395.63 × 79,193.03
  4. Step 4: Simplify right side
    191,573.85x = 22,759,730,748.46
  5. Step 5: Solve for x
    x = 22,759,730,748.46/191,573.85
  6. Step 6: Final answer
    x = 118,803.95

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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.