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Finding the Fourth Proportional to 109,730.67, 151,428.51 and 59,429.67

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Solution

The fourth proportional to 109,730.67, 151,428.51 and 59,429.67 is: 82,013.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,730.67 : 151,428.51 = 59,429.67 : x
  2. Step 2: Convert to fraction form
    109,730.67/151,428.51 = 59,429.67/x
  3. Step 3: Cross multiply
    109,730.67x = 151,428.51 × 59,429.67
  4. Step 4: Simplify right side
    109,730.67x = 8,999,346,377.89
  5. Step 5: Solve for x
    x = 8,999,346,377.89/109,730.67
  6. Step 6: Final answer
    x = 82,013.05

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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.