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Finding the Fourth Proportional to 261,068.56, 360,288.84 and 147,913.36

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Solution

The fourth proportional to 261,068.56, 360,288.84 and 147,913.36 is: 204,128.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    261,068.56 : 360,288.84 = 147,913.36 : x
  2. Step 2: Convert to fraction form
    261,068.56/360,288.84 = 147,913.36/x
  3. Step 3: Cross multiply
    261,068.56x = 360,288.84 × 147,913.36
  4. Step 4: Simplify right side
    261,068.56x = 53,291,532,894.90
  5. Step 5: Solve for x
    x = 53,291,532,894.90/261,068.56
  6. Step 6: Final answer
    x = 204,128.50

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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.