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Finding the Fourth Proportional to 352,269.86, 528,436.94 and 99,554.00

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Solution

The fourth proportional to 352,269.86, 528,436.94 and 99,554.00 is: 149,340.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    352,269.86 : 528,436.94 = 99,554.00 : x
  2. Step 2: Convert to fraction form
    352,269.86/528,436.94 = 99,554.00/x
  3. Step 3: Cross multiply
    352,269.86x = 528,436.94 × 99,554.00
  4. Step 4: Simplify right side
    352,269.86x = 52,608,007,984.81
  5. Step 5: Solve for x
    x = 52,608,007,984.81/352,269.86
  6. Step 6: Final answer
    x = 149,340.08

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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.