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Finding the Fourth Proportional to 72,465.40, 101,244.20 and 72,465.40

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Solution

The fourth proportional to 72,465.40, 101,244.20 and 72,465.40 is: 101,244.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,465.40 : 101,244.20 = 72,465.40 : x
  2. Step 2: Convert to fraction form
    72,465.40/101,244.20 = 72,465.40/x
  3. Step 3: Cross multiply
    72,465.40x = 101,244.20 × 72,465.40
  4. Step 4: Simplify right side
    72,465.40x = 7,336,701,450.68
  5. Step 5: Solve for x
    x = 7,336,701,450.68/72,465.40
  6. Step 6: Final answer
    x = 101,244.20

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.