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Finding the Fourth Proportional to 77,953.19, 116,867.21 and 53,001.95

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Solution

The fourth proportional to 77,953.19, 116,867.21 and 53,001.95 is: 79,460.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,953.19 : 116,867.21 = 53,001.95 : x
  2. Step 2: Convert to fraction form
    77,953.19/116,867.21 = 53,001.95/x
  3. Step 3: Cross multiply
    77,953.19x = 116,867.21 × 53,001.95
  4. Step 4: Simplify right side
    77,953.19x = 6,194,189,171.71
  5. Step 5: Solve for x
    x = 6,194,189,171.71/77,953.19
  6. Step 6: Final answer
    x = 79,460.37

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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.