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Finding the Fourth Proportional to 48,755.60, 73,133.40 and 43,312.40

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Solution

The fourth proportional to 48,755.60, 73,133.40 and 43,312.40 is: 64,968.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,755.60 : 73,133.40 = 43,312.40 : x
  2. Step 2: Convert to fraction form
    48,755.60/73,133.40 = 43,312.40/x
  3. Step 3: Cross multiply
    48,755.60x = 73,133.40 × 43,312.40
  4. Step 4: Simplify right side
    48,755.60x = 3,167,583,074.16
  5. Step 5: Solve for x
    x = 3,167,583,074.16/48,755.60
  6. Step 6: Final answer
    x = 64,968.60

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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.