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Finding the Fourth Proportional to 352,311.30, 528,484.73 and 99,609.93

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Solution

The fourth proportional to 352,311.30, 528,484.73 and 99,609.93 is: 149,419.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    352,311.30 : 528,484.73 = 99,609.93 : x
  2. Step 2: Convert to fraction form
    352,311.30/528,484.73 = 99,609.93/x
  3. Step 3: Cross multiply
    352,311.30x = 528,484.73 × 99,609.93
  4. Step 4: Simplify right side
    352,311.30x = 52,642,326,463.32
  5. Step 5: Solve for x
    x = 52,642,326,463.32/352,311.30
  6. Step 6: Final answer
    x = 149,419.92

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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.