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Finding the Fourth Proportional to 154,114.80, 230,999.40 and 65,353.20

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Solution

The fourth proportional to 154,114.80, 230,999.40 and 65,353.20 is: 97,956.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,114.80 : 230,999.40 = 65,353.20 : x
  2. Step 2: Convert to fraction form
    154,114.80/230,999.40 = 65,353.20/x
  3. Step 3: Cross multiply
    154,114.80x = 230,999.40 × 65,353.20
  4. Step 4: Simplify right side
    154,114.80x = 15,096,549,988.08
  5. Step 5: Solve for x
    x = 15,096,549,988.08/154,114.80
  6. Step 6: Final answer
    x = 97,956.52

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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.