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Finding the Fourth Proportional to 191,368.17, 287,064.36 and 58,258.17

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Solution

The fourth proportional to 191,368.17, 287,064.36 and 58,258.17 is: 87,390.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    191,368.17 : 287,064.36 = 58,258.17 : x
  2. Step 2: Convert to fraction form
    191,368.17/287,064.36 = 58,258.17/x
  3. Step 3: Cross multiply
    191,368.17x = 287,064.36 × 58,258.17
  4. Step 4: Simplify right side
    191,368.17x = 16,723,844,285.82
  5. Step 5: Solve for x
    x = 16,723,844,285.82/191,368.17
  6. Step 6: Final answer
    x = 87,390.94

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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.