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Finding the Fourth Proportional to 415,856.93, 623,808.08 and 131,526.24

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Solution

The fourth proportional to 415,856.93, 623,808.08 and 131,526.24 is: 197,296.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    415,856.93 : 623,808.08 = 131,526.24 : x
  2. Step 2: Convert to fraction form
    415,856.93/623,808.08 = 131,526.24/x
  3. Step 3: Cross multiply
    415,856.93x = 623,808.08 × 131,526.24
  4. Step 4: Simplify right side
    415,856.93x = 82,047,130,586.39
  5. Step 5: Solve for x
    x = 82,047,130,586.39/415,856.93
  6. Step 6: Final answer
    x = 197,296.54

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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.