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Finding the Fourth Proportional to 136,071.80, 204,059.10 and 47,328.20

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Solution

The fourth proportional to 136,071.80, 204,059.10 and 47,328.20 is: 70,975.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,071.80 : 204,059.10 = 47,328.20 : x
  2. Step 2: Convert to fraction form
    136,071.80/204,059.10 = 47,328.20/x
  3. Step 3: Cross multiply
    136,071.80x = 204,059.10 × 47,328.20
  4. Step 4: Simplify right side
    136,071.80x = 9,657,749,896.62
  5. Step 5: Solve for x
    x = 9,657,749,896.62/136,071.80
  6. Step 6: Final answer
    x = 70,975.40

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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.