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Finding the Fourth Proportional to 174,667.52, 261,975.76 and 85,897.20

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Solution

The fourth proportional to 174,667.52, 261,975.76 and 85,897.20 is: 128,833.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    174,667.52 : 261,975.76 = 85,897.20 : x
  2. Step 2: Convert to fraction form
    174,667.52/261,975.76 = 85,897.20/x
  3. Step 3: Cross multiply
    174,667.52x = 261,975.76 × 85,897.20
  4. Step 4: Simplify right side
    174,667.52x = 22,502,984,251.87
  5. Step 5: Solve for x
    x = 22,502,984,251.87/174,667.52
  6. Step 6: Final answer
    x = 128,833.25

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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.