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Finding the Fourth Proportional to 352,813.59, 530,270.15 and 165,956.31

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Solution

The fourth proportional to 352,813.59, 530,270.15 and 165,956.31 is: 249,428.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    352,813.59 : 530,270.15 = 165,956.31 : x
  2. Step 2: Convert to fraction form
    352,813.59/530,270.15 = 165,956.31/x
  3. Step 3: Cross multiply
    352,813.59x = 530,270.15 × 165,956.31
  4. Step 4: Simplify right side
    352,813.59x = 88,001,676,567.37
  5. Step 5: Solve for x
    x = 88,001,676,567.37/352,813.59
  6. Step 6: Final answer
    x = 249,428.25

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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.