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Finding the Fourth Proportional to 352,097.96, 528,109.50 and 99,372.20

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Solution

The fourth proportional to 352,097.96, 528,109.50 and 99,372.20 is: 149,047.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    352,097.96 : 528,109.50 = 99,372.20 : x
  2. Step 2: Convert to fraction form
    352,097.96/528,109.50 = 99,372.20/x
  3. Step 3: Cross multiply
    352,097.96x = 528,109.50 × 99,372.20
  4. Step 4: Simplify right side
    352,097.96x = 52,479,402,855.90
  5. Step 5: Solve for x
    x = 52,479,402,855.90/352,097.96
  6. Step 6: Final answer
    x = 149,047.73

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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.