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Finding the Fourth Proportional to 191,729.40, 287,594.10 and 49,574.40

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Solution

The fourth proportional to 191,729.40, 287,594.10 and 49,574.40 is: 74,361.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    191,729.40 : 287,594.10 = 49,574.40 : x
  2. Step 2: Convert to fraction form
    191,729.40/287,594.10 = 49,574.40/x
  3. Step 3: Cross multiply
    191,729.40x = 287,594.10 × 49,574.40
  4. Step 4: Simplify right side
    191,729.40x = 14,257,304,951.04
  5. Step 5: Solve for x
    x = 14,257,304,951.04/191,729.40
  6. Step 6: Final answer
    x = 74,361.60

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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.