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Finding the Fourth Proportional to 104,645.80, 157,055.10 and 48,572.20

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Solution

The fourth proportional to 104,645.80, 157,055.10 and 48,572.20 is: 72,898.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,645.80 : 157,055.10 = 48,572.20 : x
  2. Step 2: Convert to fraction form
    104,645.80/157,055.10 = 48,572.20/x
  3. Step 3: Cross multiply
    104,645.80x = 157,055.10 × 48,572.20
  4. Step 4: Simplify right side
    104,645.80x = 7,628,511,728.22
  5. Step 5: Solve for x
    x = 7,628,511,728.22/104,645.80
  6. Step 6: Final answer
    x = 72,898.40

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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.