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Finding the Fourth Proportional to 158,150.84, 218,241.40 and 96,878.40

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Solution

The fourth proportional to 158,150.84, 218,241.40 and 96,878.40 is: 133,688.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    158,150.84 : 218,241.40 = 96,878.40 : x
  2. Step 2: Convert to fraction form
    158,150.84/218,241.40 = 96,878.40/x
  3. Step 3: Cross multiply
    158,150.84x = 218,241.40 × 96,878.40
  4. Step 4: Simplify right side
    158,150.84x = 21,142,877,645.76
  5. Step 5: Solve for x
    x = 21,142,877,645.76/158,150.84
  6. Step 6: Final answer
    x = 133,688.05

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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.