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Finding the Fourth Proportional to 88,715.80, 133,089.90 and 36,130.60

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Solution

The fourth proportional to 88,715.80, 133,089.90 and 36,130.60 is: 54,202.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,715.80 : 133,089.90 = 36,130.60 : x
  2. Step 2: Convert to fraction form
    88,715.80/133,089.90 = 36,130.60/x
  3. Step 3: Cross multiply
    88,715.80x = 133,089.90 × 36,130.60
  4. Step 4: Simplify right side
    88,715.80x = 4,808,617,940.94
  5. Step 5: Solve for x
    x = 4,808,617,940.94/88,715.80
  6. Step 6: Final answer
    x = 54,202.50

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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.