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Finding the Fourth Proportional to 415,869.68, 623,842.54 and 116,349.39

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Solution

The fourth proportional to 415,869.68, 623,842.54 and 116,349.39 is: 174,534.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    415,869.68 : 623,842.54 = 116,349.39 : x
  2. Step 2: Convert to fraction form
    415,869.68/623,842.54 = 116,349.39/x
  3. Step 3: Cross multiply
    415,869.68x = 623,842.54 × 116,349.39
  4. Step 4: Simplify right side
    415,869.68x = 72,583,698,694.18
  5. Step 5: Solve for x
    x = 72,583,698,694.18/415,869.68
  6. Step 6: Final answer
    x = 174,534.72

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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.