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Finding the Fourth Proportional to 353,530.74, 530,379.18 and 116,873.46

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Solution

The fourth proportional to 353,530.74, 530,379.18 and 116,873.46 is: 175,337.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    353,530.74 : 530,379.18 = 116,873.46 : x
  2. Step 2: Convert to fraction form
    353,530.74/530,379.18 = 116,873.46/x
  3. Step 3: Cross multiply
    353,530.74x = 530,379.18 × 116,873.46
  4. Step 4: Simplify right side
    353,530.74x = 61,987,249,878.56
  5. Step 5: Solve for x
    x = 61,987,249,878.56/353,530.74
  6. Step 6: Final answer
    x = 175,337.65

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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.