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Finding the Fourth Proportional to 99,618.80, 149,428.20 and 94,564.40

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Solution

The fourth proportional to 99,618.80, 149,428.20 and 94,564.40 is: 141,846.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,618.80 : 149,428.20 = 94,564.40 : x
  2. Step 2: Convert to fraction form
    99,618.80/149,428.20 = 94,564.40/x
  3. Step 3: Cross multiply
    99,618.80x = 149,428.20 × 94,564.40
  4. Step 4: Simplify right side
    99,618.80x = 14,130,588,076.08
  5. Step 5: Solve for x
    x = 14,130,588,076.08/99,618.80
  6. Step 6: Final answer
    x = 141,846.60

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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.