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Finding the Fourth Proportional to 103,722.30, 155,525.85 and 41,322.30

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Solution

The fourth proportional to 103,722.30, 155,525.85 and 41,322.30 is: 61,960.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,722.30 : 155,525.85 = 41,322.30 : x
  2. Step 2: Convert to fraction form
    103,722.30/155,525.85 = 41,322.30/x
  3. Step 3: Cross multiply
    103,722.30x = 155,525.85 × 41,322.30
  4. Step 4: Simplify right side
    103,722.30x = 6,426,685,831.46
  5. Step 5: Solve for x
    x = 6,426,685,831.46/103,722.30
  6. Step 6: Final answer
    x = 61,960.50

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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.