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Finding the Fourth Proportional to 88,098, 121,577.16 and 48,354

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Solution

The fourth proportional to 88,098, 121,577.16 and 48,354 is: 66,729.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,098 : 121,577.16 = 48,354 : x
  2. Step 2: Convert to fraction form
    88,098/121,577.16 = 48,354/x
  3. Step 3: Cross multiply
    88,098x = 121,577.16 × 48,354
  4. Step 4: Simplify right side
    88,098x = 5,878,741,994.64
  5. Step 5: Solve for x
    x = 5,878,741,994.64/88,098
  6. Step 6: Final answer
    x = 66,729.57

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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.