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Finding the Fourth Proportional to 134,066.40, 201,099.60 and 86,827.20

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Solution

The fourth proportional to 134,066.40, 201,099.60 and 86,827.20 is: 130,240.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    134,066.40 : 201,099.60 = 86,827.20 : x
  2. Step 2: Convert to fraction form
    134,066.40/201,099.60 = 86,827.20/x
  3. Step 3: Cross multiply
    134,066.40x = 201,099.60 × 86,827.20
  4. Step 4: Simplify right side
    134,066.40x = 17,460,915,189.12
  5. Step 5: Solve for x
    x = 17,460,915,189.12/134,066.40
  6. Step 6: Final answer
    x = 130,240.80

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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.