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Finding the Fourth Proportional to 84,968.40, 127,452.60 and 45,602.40

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Solution

The fourth proportional to 84,968.40, 127,452.60 and 45,602.40 is: 68,403.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,968.40 : 127,452.60 = 45,602.40 : x
  2. Step 2: Convert to fraction form
    84,968.40/127,452.60 = 45,602.40/x
  3. Step 3: Cross multiply
    84,968.40x = 127,452.60 × 45,602.40
  4. Step 4: Simplify right side
    84,968.40x = 5,812,144,446.24
  5. Step 5: Solve for x
    x = 5,812,144,446.24/84,968.40
  6. Step 6: Final answer
    x = 68,403.60

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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.