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Finding the Fourth Proportional to 92,410.40, 129,637 and 92,410.40

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Solution

The fourth proportional to 92,410.40, 129,637 and 92,410.40 is: 129,637

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,410.40 : 129,637 = 92,410.40 : x
  2. Step 2: Convert to fraction form
    92,410.40/129,637 = 92,410.40/x
  3. Step 3: Cross multiply
    92,410.40x = 129,637 × 92,410.40
  4. Step 4: Simplify right side
    92,410.40x = 11,979,807,024.80
  5. Step 5: Solve for x
    x = 11,979,807,024.80/92,410.40
  6. Step 6: Final answer
    x = 129,637

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.