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Finding the Fourth Proportional to 352,014.64, 528,013.24 and 102,698.80

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Solution

The fourth proportional to 352,014.64, 528,013.24 and 102,698.80 is: 154,045.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    352,014.64 : 528,013.24 = 102,698.80 : x
  2. Step 2: Convert to fraction form
    352,014.64/528,013.24 = 102,698.80/x
  3. Step 3: Cross multiply
    352,014.64x = 528,013.24 × 102,698.80
  4. Step 4: Simplify right side
    352,014.64x = 54,226,326,132.11
  5. Step 5: Solve for x
    x = 54,226,326,132.11/352,014.64
  6. Step 6: Final answer
    x = 154,045.66

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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.