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Finding the Fourth Proportional to 108,951.84, 150,368.67 and 61,208.82

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Solution

The fourth proportional to 108,951.84, 150,368.67 and 61,208.82 is: 84,476.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,951.84 : 150,368.67 = 61,208.82 : x
  2. Step 2: Convert to fraction form
    108,951.84/150,368.67 = 61,208.82/x
  3. Step 3: Cross multiply
    108,951.84x = 150,368.67 × 61,208.82
  4. Step 4: Simplify right side
    108,951.84x = 9,203,888,855.67
  5. Step 5: Solve for x
    x = 9,203,888,855.67/108,951.84
  6. Step 6: Final answer
    x = 84,476.67

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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.