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Finding the Fourth Proportional to 354,526.08, 531,788.85 and 105,208.08

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Solution

The fourth proportional to 354,526.08, 531,788.85 and 105,208.08 is: 157,812.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    354,526.08 : 531,788.85 = 105,208.08 : x
  2. Step 2: Convert to fraction form
    354,526.08/531,788.85 = 105,208.08/x
  3. Step 3: Cross multiply
    354,526.08x = 531,788.85 × 105,208.08
  4. Step 4: Simplify right side
    354,526.08x = 55,948,483,873.91
  5. Step 5: Solve for x
    x = 55,948,483,873.91/354,526.08
  6. Step 6: Final answer
    x = 157,812.04

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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.