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Finding the Fourth Proportional to 367,875.02, 551,952.63 and 128,015.57

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Solution

The fourth proportional to 367,875.02, 551,952.63 and 128,015.57 is: 192,072.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    367,875.02 : 551,952.63 = 128,015.57 : x
  2. Step 2: Convert to fraction form
    367,875.02/551,952.63 = 128,015.57/x
  3. Step 3: Cross multiply
    367,875.02x = 551,952.63 × 128,015.57
  4. Step 4: Simplify right side
    367,875.02x = 70,658,530,542.45
  5. Step 5: Solve for x
    x = 70,658,530,542.45/367,875.02
  6. Step 6: Final answer
    x = 192,072.11

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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.