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Finding the Fourth Proportional to 528,902.50, 793,353.81 and 134,918.50

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Solution

The fourth proportional to 528,902.50, 793,353.81 and 134,918.50 is: 202,377.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    528,902.50 : 793,353.81 = 134,918.50 : x
  2. Step 2: Convert to fraction form
    528,902.50/793,353.81 = 134,918.50/x
  3. Step 3: Cross multiply
    528,902.50x = 793,353.81 × 134,918.50
  4. Step 4: Simplify right side
    528,902.50x = 107,038,106,014.49
  5. Step 5: Solve for x
    x = 107,038,106,014.49/528,902.50
  6. Step 6: Final answer
    x = 202,377.77

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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.