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Finding the Fourth Proportional to 133,358.40, 187,012.80 and 133,358.40

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Solution

The fourth proportional to 133,358.40, 187,012.80 and 133,358.40 is: 187,012.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,358.40 : 187,012.80 = 133,358.40 : x
  2. Step 2: Convert to fraction form
    133,358.40/187,012.80 = 133,358.40/x
  3. Step 3: Cross multiply
    133,358.40x = 187,012.80 × 133,358.40
  4. Step 4: Simplify right side
    133,358.40x = 24,939,727,787.52
  5. Step 5: Solve for x
    x = 24,939,727,787.52/133,358.40
  6. Step 6: Final answer
    x = 187,012.80

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.