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Finding the Fourth Proportional to 162,318.40, 243,477.60 and 156,097.60

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Solution

The fourth proportional to 162,318.40, 243,477.60 and 156,097.60 is: 234,146.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    162,318.40 : 243,477.60 = 156,097.60 : x
  2. Step 2: Convert to fraction form
    162,318.40/243,477.60 = 156,097.60/x
  3. Step 3: Cross multiply
    162,318.40x = 243,477.60 × 156,097.60
  4. Step 4: Simplify right side
    162,318.40x = 38,006,269,013.76
  5. Step 5: Solve for x
    x = 38,006,269,013.76/162,318.40
  6. Step 6: Final answer
    x = 234,146.40

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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.