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Finding the Fourth Proportional to 191,726.70, 287,590.05 and 162,202.20

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Solution

The fourth proportional to 191,726.70, 287,590.05 and 162,202.20 is: 243,303.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    191,726.70 : 287,590.05 = 162,202.20 : x
  2. Step 2: Convert to fraction form
    191,726.70/287,590.05 = 162,202.20/x
  3. Step 3: Cross multiply
    191,726.70x = 287,590.05 × 162,202.20
  4. Step 4: Simplify right side
    191,726.70x = 46,647,738,808.11
  5. Step 5: Solve for x
    x = 46,647,738,808.11/191,726.70
  6. Step 6: Final answer
    x = 243,303.30

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1.5x scale

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.