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Finding the Fourth Proportional to 162,395.60, 243,593.40 and 117,813.20

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Solution

The fourth proportional to 162,395.60, 243,593.40 and 117,813.20 is: 176,719.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    162,395.60 : 243,593.40 = 117,813.20 : x
  2. Step 2: Convert to fraction form
    162,395.60/243,593.40 = 117,813.20/x
  3. Step 3: Cross multiply
    162,395.60x = 243,593.40 × 117,813.20
  4. Step 4: Simplify right side
    162,395.60x = 28,698,517,952.88
  5. Step 5: Solve for x
    x = 28,698,517,952.88/162,395.60
  6. Step 6: Final answer
    x = 176,719.80

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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.