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Finding the Fourth Proportional to 156,992.49, 216,655.32 and 89,937.45

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Solution

The fourth proportional to 156,992.49, 216,655.32 and 89,937.45 is: 124,116.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,992.49 : 216,655.32 = 89,937.45 : x
  2. Step 2: Convert to fraction form
    156,992.49/216,655.32 = 89,937.45/x
  3. Step 3: Cross multiply
    156,992.49x = 216,655.32 × 89,937.45
  4. Step 4: Simplify right side
    156,992.49x = 19,485,427,009.73
  5. Step 5: Solve for x
    x = 19,485,427,009.73/156,992.49
  6. Step 6: Final answer
    x = 124,116.94

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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.