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Finding the Fourth Proportional to 98,752.53, 136,327.07 and 77,204.26

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Solution

The fourth proportional to 98,752.53, 136,327.07 and 77,204.26 is: 106,579.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,752.53 : 136,327.07 = 77,204.26 : x
  2. Step 2: Convert to fraction form
    98,752.53/136,327.07 = 77,204.26/x
  3. Step 3: Cross multiply
    98,752.53x = 136,327.07 × 77,204.26
  4. Step 4: Simplify right side
    98,752.53x = 10,525,030,845.67
  5. Step 5: Solve for x
    x = 10,525,030,845.67/98,752.53
  6. Step 6: Final answer
    x = 106,579.86

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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.