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Finding the Fourth Proportional to 174,666.60, 261,999.90 and 74,809.80

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Solution

The fourth proportional to 174,666.60, 261,999.90 and 74,809.80 is: 112,214.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    174,666.60 : 261,999.90 = 74,809.80 : x
  2. Step 2: Convert to fraction form
    174,666.60/261,999.90 = 74,809.80/x
  3. Step 3: Cross multiply
    174,666.60x = 261,999.90 × 74,809.80
  4. Step 4: Simplify right side
    174,666.60x = 19,600,160,119.02
  5. Step 5: Solve for x
    x = 19,600,160,119.02/174,666.60
  6. Step 6: Final answer
    x = 112,214.70

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1.5x scale

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.