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Finding the Fourth Proportional to 87,316.70, 130,918.70 and 41,699.70

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Solution

The fourth proportional to 87,316.70, 130,918.70 and 41,699.70 is: 62,522.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,316.70 : 130,918.70 = 41,699.70 : x
  2. Step 2: Convert to fraction form
    87,316.70/130,918.70 = 41,699.70/x
  3. Step 3: Cross multiply
    87,316.70x = 130,918.70 × 41,699.70
  4. Step 4: Simplify right side
    87,316.70x = 5,459,270,305.89
  5. Step 5: Solve for x
    x = 5,459,270,305.89/87,316.70
  6. Step 6: Final answer
    x = 62,522.64

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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.