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Finding the Fourth Proportional to 352,529.34, 528,681.69 and 115,817.10

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Solution

The fourth proportional to 352,529.34, 528,681.69 and 115,817.10 is: 173,688.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    352,529.34 : 528,681.69 = 115,817.10 : x
  2. Step 2: Convert to fraction form
    352,529.34/528,681.69 = 115,817.10/x
  3. Step 3: Cross multiply
    352,529.34x = 528,681.69 × 115,817.10
  4. Step 4: Simplify right side
    352,529.34x = 61,230,380,158.90
  5. Step 5: Solve for x
    x = 61,230,380,158.90/352,529.34
  6. Step 6: Final answer
    x = 173,688.75

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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.