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Finding the Fourth Proportional to 192,031.40, 287,528.70 and 192,031.40

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Solution

The fourth proportional to 192,031.40, 287,528.70 and 192,031.40 is: 287,528.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    192,031.40 : 287,528.70 = 192,031.40 : x
  2. Step 2: Convert to fraction form
    192,031.40/287,528.70 = 192,031.40/x
  3. Step 3: Cross multiply
    192,031.40x = 287,528.70 × 192,031.40
  4. Step 4: Simplify right side
    192,031.40x = 55,214,538,801.18
  5. Step 5: Solve for x
    x = 55,214,538,801.18/192,031.40
  6. Step 6: Final answer
    x = 287,528.70

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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.