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Finding the Fourth Proportional to 99,270.10, 148,905.15 and 92,709.10

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Solution

The fourth proportional to 99,270.10, 148,905.15 and 92,709.10 is: 139,063.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,270.10 : 148,905.15 = 92,709.10 : x
  2. Step 2: Convert to fraction form
    99,270.10/148,905.15 = 92,709.10/x
  3. Step 3: Cross multiply
    99,270.10x = 148,905.15 × 92,709.10
  4. Step 4: Simplify right side
    99,270.10x = 13,804,862,441.87
  5. Step 5: Solve for x
    x = 13,804,862,441.87/99,270.10
  6. Step 6: Final answer
    x = 139,063.65

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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.