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Finding the Fourth Proportional to 79,032.98, 118,633.01 and 77,248.18

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Solution

The fourth proportional to 79,032.98, 118,633.01 and 77,248.18 is: 115,953.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,032.98 : 118,633.01 = 77,248.18 : x
  2. Step 2: Convert to fraction form
    79,032.98/118,633.01 = 77,248.18/x
  3. Step 3: Cross multiply
    79,032.98x = 118,633.01 × 77,248.18
  4. Step 4: Simplify right side
    79,032.98x = 9,164,183,427.60
  5. Step 5: Solve for x
    x = 9,164,183,427.60/79,032.98
  6. Step 6: Final answer
    x = 115,953.92

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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.