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Finding the Fourth Proportional to 73,477.80, 103,102.20 and 73,477.80

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Solution

The fourth proportional to 73,477.80, 103,102.20 and 73,477.80 is: 103,102.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,477.80 : 103,102.20 = 73,477.80 : x
  2. Step 2: Convert to fraction form
    73,477.80/103,102.20 = 73,477.80/x
  3. Step 3: Cross multiply
    73,477.80x = 103,102.20 × 73,477.80
  4. Step 4: Simplify right side
    73,477.80x = 7,575,722,831.16
  5. Step 5: Solve for x
    x = 7,575,722,831.16/73,477.80
  6. Step 6: Final answer
    x = 103,102.20

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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.