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Finding the Fourth Proportional to 260,516.18, 390,719.58 and 73,483.94

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Solution

The fourth proportional to 260,516.18, 390,719.58 and 73,483.94 is: 110,210.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    260,516.18 : 390,719.58 = 73,483.94 : x
  2. Step 2: Convert to fraction form
    260,516.18/390,719.58 = 73,483.94/x
  3. Step 3: Cross multiply
    260,516.18x = 390,719.58 × 73,483.94
  4. Step 4: Simplify right side
    260,516.18x = 28,711,612,219.95
  5. Step 5: Solve for x
    x = 28,711,612,219.95/260,516.18
  6. Step 6: Final answer
    x = 110,210.48

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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.