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Finding the Fourth Proportional to 99,064.40, 148,601.48 and 39,892.10

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Solution

The fourth proportional to 99,064.40, 148,601.48 and 39,892.10 is: 59,840.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,064.40 : 148,601.48 = 39,892.10 : x
  2. Step 2: Convert to fraction form
    99,064.40/148,601.48 = 39,892.10/x
  3. Step 3: Cross multiply
    99,064.40x = 148,601.48 × 39,892.10
  4. Step 4: Simplify right side
    99,064.40x = 5,928,024,157.84
  5. Step 5: Solve for x
    x = 5,928,024,157.84/99,064.40
  6. Step 6: Final answer
    x = 59,840.11

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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.