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Finding the Fourth Proportional to 131,417.60, 197,126.40 and 48,300.80

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Solution

The fourth proportional to 131,417.60, 197,126.40 and 48,300.80 is: 72,451.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,417.60 : 197,126.40 = 48,300.80 : x
  2. Step 2: Convert to fraction form
    131,417.60/197,126.40 = 48,300.80/x
  3. Step 3: Cross multiply
    131,417.60x = 197,126.40 × 48,300.80
  4. Step 4: Simplify right side
    131,417.60x = 9,521,362,821.12
  5. Step 5: Solve for x
    x = 9,521,362,821.12/131,417.60
  6. Step 6: Final answer
    x = 72,451.20

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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.