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Finding the Fourth Proportional to 147,646.76, 221,499.32 and 54,153.32

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Solution

The fourth proportional to 147,646.76, 221,499.32 and 54,153.32 is: 81,240.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,646.76 : 221,499.32 = 54,153.32 : x
  2. Step 2: Convert to fraction form
    147,646.76/221,499.32 = 54,153.32/x
  3. Step 3: Cross multiply
    147,646.76x = 221,499.32 × 54,153.32
  4. Step 4: Simplify right side
    147,646.76x = 11,994,923,555.74
  5. Step 5: Solve for x
    x = 11,994,923,555.74/147,646.76
  6. Step 6: Final answer
    x = 81,240.68

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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.