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Finding the Fourth Proportional to 352,017.30, 528,062.86 and 99,295.79

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Solution

The fourth proportional to 352,017.30, 528,062.86 and 99,295.79 is: 148,954.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    352,017.30 : 528,062.86 = 99,295.79 : x
  2. Step 2: Convert to fraction form
    352,017.30/528,062.86 = 99,295.79/x
  3. Step 3: Cross multiply
    352,017.30x = 528,062.86 × 99,295.79
  4. Step 4: Simplify right side
    352,017.30x = 52,434,416,337.16
  5. Step 5: Solve for x
    x = 52,434,416,337.16/352,017.30
  6. Step 6: Final answer
    x = 148,954.09

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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.