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Finding the Fourth Proportional to 134,061.40, 201,092.10 and 86,822.20

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Solution

The fourth proportional to 134,061.40, 201,092.10 and 86,822.20 is: 130,233.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    134,061.40 : 201,092.10 = 86,822.20 : x
  2. Step 2: Convert to fraction form
    134,061.40/201,092.10 = 86,822.20/x
  3. Step 3: Cross multiply
    134,061.40x = 201,092.10 × 86,822.20
  4. Step 4: Simplify right side
    134,061.40x = 17,459,258,524.62
  5. Step 5: Solve for x
    x = 17,459,258,524.62/134,061.40
  6. Step 6: Final answer
    x = 130,233.30

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.