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Finding the Fourth Proportional to 98,641.60, 136,093.29 and 60,361.20

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Solution

The fourth proportional to 98,641.60, 136,093.29 and 60,361.20 is: 83,278.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,641.60 : 136,093.29 = 60,361.20 : x
  2. Step 2: Convert to fraction form
    98,641.60/136,093.29 = 60,361.20/x
  3. Step 3: Cross multiply
    98,641.60x = 136,093.29 × 60,361.20
  4. Step 4: Simplify right side
    98,641.60x = 8,214,754,239.76
  5. Step 5: Solve for x
    x = 8,214,754,239.76/98,641.60
  6. Step 6: Final answer
    x = 83,278.80

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1.5x scale

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.