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Finding the Fourth Proportional to 191,729.80, 287,594.70 and 176,566.60

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Solution

The fourth proportional to 191,729.80, 287,594.70 and 176,566.60 is: 264,849.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    191,729.80 : 287,594.70 = 176,566.60 : x
  2. Step 2: Convert to fraction form
    191,729.80/287,594.70 = 176,566.60/x
  3. Step 3: Cross multiply
    191,729.80x = 287,594.70 × 176,566.60
  4. Step 4: Simplify right side
    191,729.80x = 50,779,618,357.02
  5. Step 5: Solve for x
    x = 50,779,618,357.02/191,729.80
  6. Step 6: Final answer
    x = 264,849.90

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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.