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Finding the Fourth Proportional to 70,900.53, 106,250.55 and 39,324.50

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Solution

The fourth proportional to 70,900.53, 106,250.55 and 39,324.50 is: 58,931.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,900.53 : 106,250.55 = 39,324.50 : x
  2. Step 2: Convert to fraction form
    70,900.53/106,250.55 = 39,324.50/x
  3. Step 3: Cross multiply
    70,900.53x = 106,250.55 × 39,324.50
  4. Step 4: Simplify right side
    70,900.53x = 4,178,249,753.48
  5. Step 5: Solve for x
    x = 4,178,249,753.48/70,900.53
  6. Step 6: Final answer
    x = 58,931.15

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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.