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Finding the Fourth Proportional to 354,528.58, 531,792.60 and 105,210.58

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Solution

The fourth proportional to 354,528.58, 531,792.60 and 105,210.58 is: 157,815.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    354,528.58 : 531,792.60 = 105,210.58 : x
  2. Step 2: Convert to fraction form
    354,528.58/531,792.60 = 105,210.58/x
  3. Step 3: Cross multiply
    354,528.58x = 531,792.60 × 105,210.58
  4. Step 4: Simplify right side
    354,528.58x = 55,950,207,885.71
  5. Step 5: Solve for x
    x = 55,950,207,885.71/354,528.58
  6. Step 6: Final answer
    x = 157,815.79

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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.