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Finding the Fourth Proportional to 89,603.82, 134,488.96 and 45,261.79

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Solution

The fourth proportional to 89,603.82, 134,488.96 and 45,261.79 is: 67,934.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,603.82 : 134,488.96 = 45,261.79 : x
  2. Step 2: Convert to fraction form
    89,603.82/134,488.96 = 45,261.79/x
  3. Step 3: Cross multiply
    89,603.82x = 134,488.96 × 45,261.79
  4. Step 4: Simplify right side
    89,603.82x = 6,087,210,615.46
  5. Step 5: Solve for x
    x = 6,087,210,615.46/89,603.82
  6. Step 6: Final answer
    x = 67,934.72

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1.5x scale

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.