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Finding the Fourth Proportional to 492,865.16, 739,298.55 and 118,888.16

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Solution

The fourth proportional to 492,865.16, 739,298.55 and 118,888.16 is: 178,332.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    492,865.16 : 739,298.55 = 118,888.16 : x
  2. Step 2: Convert to fraction form
    492,865.16/739,298.55 = 118,888.16/x
  3. Step 3: Cross multiply
    492,865.16x = 739,298.55 × 118,888.16
  4. Step 4: Simplify right side
    492,865.16x = 87,893,844,300.17
  5. Step 5: Solve for x
    x = 87,893,844,300.17/492,865.16
  6. Step 6: Final answer
    x = 178,332.44

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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.