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Finding the Fourth Proportional to 117,792.90, 162,532.17 and 70,057.98

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Solution

The fourth proportional to 117,792.90, 162,532.17 and 70,057.98 is: 96,666.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,792.90 : 162,532.17 = 70,057.98 : x
  2. Step 2: Convert to fraction form
    117,792.90/162,532.17 = 70,057.98/x
  3. Step 3: Cross multiply
    117,792.90x = 162,532.17 × 70,057.98
  4. Step 4: Simplify right side
    117,792.90x = 11,386,675,515.22
  5. Step 5: Solve for x
    x = 11,386,675,515.22/117,792.90
  6. Step 6: Final answer
    x = 96,666.91

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.