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Finding the Fourth Proportional to 492,045.30, 737,967.15 and 136,970.10

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Solution

The fourth proportional to 492,045.30, 737,967.15 and 136,970.10 is: 205,427.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    492,045.30 : 737,967.15 = 136,970.10 : x
  2. Step 2: Convert to fraction form
    492,045.30/737,967.15 = 136,970.10/x
  3. Step 3: Cross multiply
    492,045.30x = 737,967.15 × 136,970.10
  4. Step 4: Simplify right side
    492,045.30x = 101,079,434,332.22
  5. Step 5: Solve for x
    x = 101,079,434,332.22/492,045.30
  6. Step 6: Final answer
    x = 205,427.09

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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.