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Finding the Fourth Proportional to 190,030.40, 284,815.20 and 84,737.60

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Solution

The fourth proportional to 190,030.40, 284,815.20 and 84,737.60 is: 127,003.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    190,030.40 : 284,815.20 = 84,737.60 : x
  2. Step 2: Convert to fraction form
    190,030.40/284,815.20 = 84,737.60/x
  3. Step 3: Cross multiply
    190,030.40x = 284,815.20 × 84,737.60
  4. Step 4: Simplify right side
    190,030.40x = 24,134,556,491.52
  5. Step 5: Solve for x
    x = 24,134,556,491.52/190,030.40
  6. Step 6: Final answer
    x = 127,003.66

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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.