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Finding the Fourth Proportional to 352,064.64, 528,088.24 and 102,748.80

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Solution

The fourth proportional to 352,064.64, 528,088.24 and 102,748.80 is: 154,120.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    352,064.64 : 528,088.24 = 102,748.80 : x
  2. Step 2: Convert to fraction form
    352,064.64/528,088.24 = 102,748.80/x
  3. Step 3: Cross multiply
    352,064.64x = 528,088.24 × 102,748.80
  4. Step 4: Simplify right side
    352,064.64x = 54,260,432,954.11
  5. Step 5: Solve for x
    x = 54,260,432,954.11/352,064.64
  6. Step 6: Final answer
    x = 154,120.66

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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.