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Finding the Fourth Proportional to 77,530.70, 116,823.60 and 63,798.71

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Solution

The fourth proportional to 77,530.70, 116,823.60 and 63,798.71 is: 96,132.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,530.70 : 116,823.60 = 63,798.71 : x
  2. Step 2: Convert to fraction form
    77,530.70/116,823.60 = 63,798.71/x
  3. Step 3: Cross multiply
    77,530.70x = 116,823.60 × 63,798.71
  4. Step 4: Simplify right side
    77,530.70x = 7,453,194,393.44
  5. Step 5: Solve for x
    x = 7,453,194,393.44/77,530.70
  6. Step 6: Final answer
    x = 96,132.17

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.