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Finding the Fourth Proportional to 116,420.14, 160,623.66 and 67,987.12

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Solution

The fourth proportional to 116,420.14, 160,623.66 and 67,987.12 is: 93,801.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    116,420.14 : 160,623.66 = 67,987.12 : x
  2. Step 2: Convert to fraction form
    116,420.14/160,623.66 = 67,987.12/x
  3. Step 3: Cross multiply
    116,420.14x = 160,623.66 × 67,987.12
  4. Step 4: Simplify right side
    116,420.14x = 10,920,340,047.26
  5. Step 5: Solve for x
    x = 10,920,340,047.26/116,420.14
  6. Step 6: Final answer
    x = 93,801.12

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1.5x scale

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.