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Finding the Fourth Proportional to 89,851.80, 134,777.70 and 63,607.80

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Solution

The fourth proportional to 89,851.80, 134,777.70 and 63,607.80 is: 95,411.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,851.80 : 134,777.70 = 63,607.80 : x
  2. Step 2: Convert to fraction form
    89,851.80/134,777.70 = 63,607.80/x
  3. Step 3: Cross multiply
    89,851.80x = 134,777.70 × 63,607.80
  4. Step 4: Simplify right side
    89,851.80x = 8,572,912,986.06
  5. Step 5: Solve for x
    x = 8,572,912,986.06/89,851.80
  6. Step 6: Final answer
    x = 95,411.70

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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.