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Finding the Fourth Proportional to 153,808.98, 212,190.94 and 96,409.11

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Solution

The fourth proportional to 153,808.98, 212,190.94 and 96,409.11 is: 133,003.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    153,808.98 : 212,190.94 = 96,409.11 : x
  2. Step 2: Convert to fraction form
    153,808.98/212,190.94 = 96,409.11/x
  3. Step 3: Cross multiply
    153,808.98x = 212,190.94 × 96,409.11
  4. Step 4: Simplify right side
    153,808.98x = 20,457,139,994.90
  5. Step 5: Solve for x
    x = 20,457,139,994.90/153,808.98
  6. Step 6: Final answer
    x = 133,003.55

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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.