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Finding the Fourth Proportional to 123,087.65, 184,631.48 and 70,460.06

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Solution

The fourth proportional to 123,087.65, 184,631.48 and 70,460.06 is: 105,690.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,087.65 : 184,631.48 = 70,460.06 : x
  2. Step 2: Convert to fraction form
    123,087.65/184,631.48 = 70,460.06/x
  3. Step 3: Cross multiply
    123,087.65x = 184,631.48 × 70,460.06
  4. Step 4: Simplify right side
    123,087.65x = 13,009,145,158.69
  5. Step 5: Solve for x
    x = 13,009,145,158.69/123,087.65
  6. Step 6: Final answer
    x = 105,690.09

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Similar ratio
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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.