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Finding the Fourth Proportional to 174,558.60, 261,837.90 and 103,699.80

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Solution

The fourth proportional to 174,558.60, 261,837.90 and 103,699.80 is: 155,549.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    174,558.60 : 261,837.90 = 103,699.80 : x
  2. Step 2: Convert to fraction form
    174,558.60/261,837.90 = 103,699.80/x
  3. Step 3: Cross multiply
    174,558.60x = 261,837.90 × 103,699.80
  4. Step 4: Simplify right side
    174,558.60x = 27,152,537,862.42
  5. Step 5: Solve for x
    x = 27,152,537,862.42/174,558.60
  6. Step 6: Final answer
    x = 155,549.70

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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.