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Finding the Fourth Proportional to 154,030.80, 230,873.40 and 65,269.20

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Solution

The fourth proportional to 154,030.80, 230,873.40 and 65,269.20 is: 97,830.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,030.80 : 230,873.40 = 65,269.20 : x
  2. Step 2: Convert to fraction form
    154,030.80/230,873.40 = 65,269.20/x
  3. Step 3: Cross multiply
    154,030.80x = 230,873.40 × 65,269.20
  4. Step 4: Simplify right side
    154,030.80x = 15,068,922,119.28
  5. Step 5: Solve for x
    x = 15,068,922,119.28/154,030.80
  6. Step 6: Final answer
    x = 97,830.58

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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.