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Finding the Fourth Proportional to 352,154.93, 528,264.05 and 99,437.96

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Solution

The fourth proportional to 352,154.93, 528,264.05 and 99,437.96 is: 149,165.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    352,154.93 : 528,264.05 = 99,437.96 : x
  2. Step 2: Convert to fraction form
    352,154.93/528,264.05 = 99,437.96/x
  3. Step 3: Cross multiply
    352,154.93x = 528,264.05 × 99,437.96
  4. Step 4: Simplify right side
    352,154.93x = 52,529,500,296.81
  5. Step 5: Solve for x
    x = 52,529,500,296.81/352,154.93
  6. Step 6: Final answer
    x = 149,165.88

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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.