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Finding the Fourth Proportional to 162,595.20, 243,601.20 and 139,267.20

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Solution

The fourth proportional to 162,595.20, 243,601.20 and 139,267.20 is: 208,651.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    162,595.20 : 243,601.20 = 139,267.20 : x
  2. Step 2: Convert to fraction form
    162,595.20/243,601.20 = 139,267.20/x
  3. Step 3: Cross multiply
    162,595.20x = 243,601.20 × 139,267.20
  4. Step 4: Simplify right side
    162,595.20x = 33,925,657,040.64
  5. Step 5: Solve for x
    x = 33,925,657,040.64/162,595.20
  6. Step 6: Final answer
    x = 208,651.04

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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.