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Finding the Fourth Proportional to 174,231.60, 261,347.40 and 162,421.80

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Solution

The fourth proportional to 174,231.60, 261,347.40 and 162,421.80 is: 243,632.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    174,231.60 : 261,347.40 = 162,421.80 : x
  2. Step 2: Convert to fraction form
    174,231.60/261,347.40 = 162,421.80/x
  3. Step 3: Cross multiply
    174,231.60x = 261,347.40 × 162,421.80
  4. Step 4: Simplify right side
    174,231.60x = 42,448,515,133.32
  5. Step 5: Solve for x
    x = 42,448,515,133.32/174,231.60
  6. Step 6: Final answer
    x = 243,632.70

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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.