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Finding the Fourth Proportional to 235,251.49, 324,639.65 and 127,821.04

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Solution

The fourth proportional to 235,251.49, 324,639.65 and 127,821.04 is: 176,389.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    235,251.49 : 324,639.65 = 127,821.04 : x
  2. Step 2: Convert to fraction form
    235,251.49/324,639.65 = 127,821.04/x
  3. Step 3: Cross multiply
    235,251.49x = 324,639.65 × 127,821.04
  4. Step 4: Simplify right side
    235,251.49x = 41,495,776,477.20
  5. Step 5: Solve for x
    x = 41,495,776,477.20/235,251.49
  6. Step 6: Final answer
    x = 176,389.01

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.