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Finding the Fourth Proportional to 88,401.84, 121,994.84 and 48,116.12

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Solution

The fourth proportional to 88,401.84, 121,994.84 and 48,116.12 is: 66,400.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,401.84 : 121,994.84 = 48,116.12 : x
  2. Step 2: Convert to fraction form
    88,401.84/121,994.84 = 48,116.12/x
  3. Step 3: Cross multiply
    88,401.84x = 121,994.84 × 48,116.12
  4. Step 4: Simplify right side
    88,401.84x = 5,869,918,360.82
  5. Step 5: Solve for x
    x = 5,869,918,360.82/88,401.84
  6. Step 6: Final answer
    x = 66,400.41

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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.