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Finding the Fourth Proportional to 98,586, 136,038.93 and 60,356.33

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Solution

The fourth proportional to 98,586, 136,038.93 and 60,356.33 is: 83,285.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,586 : 136,038.93 = 60,356.33 : x
  2. Step 2: Convert to fraction form
    98,586/136,038.93 = 60,356.33/x
  3. Step 3: Cross multiply
    98,586x = 136,038.93 × 60,356.33
  4. Step 4: Simplify right side
    98,586x = 8,210,809,871.73
  5. Step 5: Solve for x
    x = 8,210,809,871.73/98,586
  6. Step 6: Final answer
    x = 83,285.76

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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.