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Finding the Fourth Proportional to 123,071.40, 184,607.10 and 91,967.40

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Solution

The fourth proportional to 123,071.40, 184,607.10 and 91,967.40 is: 137,951.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,071.40 : 184,607.10 = 91,967.40 : x
  2. Step 2: Convert to fraction form
    123,071.40/184,607.10 = 91,967.40/x
  3. Step 3: Cross multiply
    123,071.40x = 184,607.10 × 91,967.40
  4. Step 4: Simplify right side
    123,071.40x = 16,977,835,008.54
  5. Step 5: Solve for x
    x = 16,977,835,008.54/123,071.40
  6. Step 6: Final answer
    x = 137,951.10

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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.