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Finding the Fourth Proportional to 162,014.40, 243,021.60 and 92,030.40

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Solution

The fourth proportional to 162,014.40, 243,021.60 and 92,030.40 is: 138,045.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    162,014.40 : 243,021.60 = 92,030.40 : x
  2. Step 2: Convert to fraction form
    162,014.40/243,021.60 = 92,030.40/x
  3. Step 3: Cross multiply
    162,014.40x = 243,021.60 × 92,030.40
  4. Step 4: Simplify right side
    162,014.40x = 22,365,375,056.64
  5. Step 5: Solve for x
    x = 22,365,375,056.64/162,014.40
  6. Step 6: Final answer
    x = 138,045.60

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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.