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Finding the Fourth Proportional to 261,336.86, 360,601.15 and 153,928.28

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Solution

The fourth proportional to 261,336.86, 360,601.15 and 153,928.28 is: 212,395.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    261,336.86 : 360,601.15 = 153,928.28 : x
  2. Step 2: Convert to fraction form
    261,336.86/360,601.15 = 153,928.28/x
  3. Step 3: Cross multiply
    261,336.86x = 360,601.15 × 153,928.28
  4. Step 4: Simplify right side
    261,336.86x = 55,506,713,562.44
  5. Step 5: Solve for x
    x = 55,506,713,562.44/261,336.86
  6. Step 6: Final answer
    x = 212,395.27

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.