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Finding the Fourth Proportional to 385,160.78, 577,624.53 and 104,641.58

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Solution

The fourth proportional to 385,160.78, 577,624.53 and 104,641.58 is: 156,930.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    385,160.78 : 577,624.53 = 104,641.58 : x
  2. Step 2: Convert to fraction form
    385,160.78/577,624.53 = 104,641.58/x
  3. Step 3: Cross multiply
    385,160.78x = 577,624.53 × 104,641.58
  4. Step 4: Simplify right side
    385,160.78x = 60,443,543,465.96
  5. Step 5: Solve for x
    x = 60,443,543,465.96/385,160.78
  6. Step 6: Final answer
    x = 156,930.68

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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.