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Finding the Fourth Proportional to 82,952.70, 124,429.05 and 49,272.90

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Solution

The fourth proportional to 82,952.70, 124,429.05 and 49,272.90 is: 73,909.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,952.70 : 124,429.05 = 49,272.90 : x
  2. Step 2: Convert to fraction form
    82,952.70/124,429.05 = 49,272.90/x
  3. Step 3: Cross multiply
    82,952.70x = 124,429.05 × 49,272.90
  4. Step 4: Simplify right side
    82,952.70x = 6,130,980,137.75
  5. Step 5: Solve for x
    x = 6,130,980,137.75/82,952.70
  6. Step 6: Final answer
    x = 73,909.35

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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.