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Finding the Fourth Proportional to 106,404.96, 159,606.48 and 40,740.96

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Solution

The fourth proportional to 106,404.96, 159,606.48 and 40,740.96 is: 61,111.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    106,404.96 : 159,606.48 = 40,740.96 : x
  2. Step 2: Convert to fraction form
    106,404.96/159,606.48 = 40,740.96/x
  3. Step 3: Cross multiply
    106,404.96x = 159,606.48 × 40,740.96
  4. Step 4: Simplify right side
    106,404.96x = 6,502,521,217.42
  5. Step 5: Solve for x
    x = 6,502,521,217.42/106,404.96
  6. Step 6: Final answer
    x = 61,111.07

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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.