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Finding the Fourth Proportional to 201,479.88, 278,051.58 and 116,580.48

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Solution

The fourth proportional to 201,479.88, 278,051.58 and 116,580.48 is: 160,886.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    201,479.88 : 278,051.58 = 116,580.48 : x
  2. Step 2: Convert to fraction form
    201,479.88/278,051.58 = 116,580.48/x
  3. Step 3: Cross multiply
    201,479.88x = 278,051.58 × 116,580.48
  4. Step 4: Simplify right side
    201,479.88x = 32,415,386,661.16
  5. Step 5: Solve for x
    x = 32,415,386,661.16/201,479.88
  6. Step 6: Final answer
    x = 160,886.47

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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.