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Finding the Fourth Proportional to 162,071.94, 223,670.50 and 90,465.90

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Solution

The fourth proportional to 162,071.94, 223,670.50 and 90,465.90 is: 124,849.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    162,071.94 : 223,670.50 = 90,465.90 : x
  2. Step 2: Convert to fraction form
    162,071.94/223,670.50 = 90,465.90/x
  3. Step 3: Cross multiply
    162,071.94x = 223,670.50 × 90,465.90
  4. Step 4: Simplify right side
    162,071.94x = 20,234,553,085.95
  5. Step 5: Solve for x
    x = 20,234,553,085.95/162,071.94
  6. Step 6: Final answer
    x = 124,849.21

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.