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Finding the Fourth Proportional to 98,774.79, 136,300.60 and 57,947.14

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Solution

The fourth proportional to 98,774.79, 136,300.60 and 57,947.14 is: 79,962.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,774.79 : 136,300.60 = 57,947.14 : x
  2. Step 2: Convert to fraction form
    98,774.79/136,300.60 = 57,947.14/x
  3. Step 3: Cross multiply
    98,774.79x = 136,300.60 × 57,947.14
  4. Step 4: Simplify right side
    98,774.79x = 7,898,230,193.09
  5. Step 5: Solve for x
    x = 7,898,230,193.09/98,774.79
  6. Step 6: Final answer
    x = 79,962.01

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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.