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Finding the Fourth Proportional to 91,492.80, 137,325.60 and 56,500.80

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Solution

The fourth proportional to 91,492.80, 137,325.60 and 56,500.80 is: 84,804.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,492.80 : 137,325.60 = 56,500.80 : x
  2. Step 2: Convert to fraction form
    91,492.80/137,325.60 = 56,500.80/x
  3. Step 3: Cross multiply
    91,492.80x = 137,325.60 × 56,500.80
  4. Step 4: Simplify right side
    91,492.80x = 7,759,006,260.48
  5. Step 5: Solve for x
    x = 7,759,006,260.48/91,492.80
  6. Step 6: Final answer
    x = 84,804.56

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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.