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Finding the Fourth Proportional to 357,077.58, 535,613.94 and 90,835.71

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Solution

The fourth proportional to 357,077.58, 535,613.94 and 90,835.71 is: 136,252.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    357,077.58 : 535,613.94 = 90,835.71 : x
  2. Step 2: Convert to fraction form
    357,077.58/535,613.94 = 90,835.71/x
  3. Step 3: Cross multiply
    357,077.58x = 535,613.94 × 90,835.71
  4. Step 4: Simplify right side
    357,077.58x = 48,652,872,525.80
  5. Step 5: Solve for x
    x = 48,652,872,525.80/357,077.58
  6. Step 6: Final answer
    x = 136,252.95

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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.