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Finding the Fourth Proportional to 162,465.60, 243,042.30 and 140,522.70

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Solution

The fourth proportional to 162,465.60, 243,042.30 and 140,522.70 is: 210,216.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    162,465.60 : 243,042.30 = 140,522.70 : x
  2. Step 2: Convert to fraction form
    162,465.60/243,042.30 = 140,522.70/x
  3. Step 3: Cross multiply
    162,465.60x = 243,042.30 × 140,522.70
  4. Step 4: Simplify right side
    162,465.60x = 34,152,960,210.21
  5. Step 5: Solve for x
    x = 34,152,960,210.21/162,465.60
  6. Step 6: Final answer
    x = 210,216.56

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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.