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Finding the Fourth Proportional to 292,843.62, 439,369.47 and 130,722.98

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Solution

The fourth proportional to 292,843.62, 439,369.47 and 130,722.98 is: 196,130.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    292,843.62 : 439,369.47 = 130,722.98 : x
  2. Step 2: Convert to fraction form
    292,843.62/439,369.47 = 130,722.98/x
  3. Step 3: Cross multiply
    292,843.62x = 439,369.47 × 130,722.98
  4. Step 4: Simplify right side
    292,843.62x = 57,435,684,242.57
  5. Step 5: Solve for x
    x = 57,435,684,242.57/292,843.62
  6. Step 6: Final answer
    x = 196,130.91

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1.5x scale

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.