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Finding the Fourth Proportional to 191,366.58, 287,064.54 and 58,258.20

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Solution

The fourth proportional to 191,366.58, 287,064.54 and 58,258.20 is: 87,391.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    191,366.58 : 287,064.54 = 58,258.20 : x
  2. Step 2: Convert to fraction form
    191,366.58/287,064.54 = 58,258.20/x
  3. Step 3: Cross multiply
    191,366.58x = 287,064.54 × 58,258.20
  4. Step 4: Simplify right side
    191,366.58x = 16,723,863,384.23
  5. Step 5: Solve for x
    x = 16,723,863,384.23/191,366.58
  6. Step 6: Final answer
    x = 87,391.77

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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.