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Finding the Fourth Proportional to 157,243.88, 216,992.04 and 89,267.06

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Solution

The fourth proportional to 157,243.88, 216,992.04 and 89,267.06 is: 123,185.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,243.88 : 216,992.04 = 89,267.06 : x
  2. Step 2: Convert to fraction form
    157,243.88/216,992.04 = 89,267.06/x
  3. Step 3: Cross multiply
    157,243.88x = 216,992.04 × 89,267.06
  4. Step 4: Simplify right side
    157,243.88x = 19,370,241,454.20
  5. Step 5: Solve for x
    x = 19,370,241,454.20/157,243.88
  6. Step 6: Final answer
    x = 123,185.98

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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.