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Finding the Fourth Proportional to 70,146.01, 96,801.45 and 38,314.99

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Solution

The fourth proportional to 70,146.01, 96,801.45 and 38,314.99 is: 52,874.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,146.01 : 96,801.45 = 38,314.99 : x
  2. Step 2: Convert to fraction form
    70,146.01/96,801.45 = 38,314.99/x
  3. Step 3: Cross multiply
    70,146.01x = 96,801.45 × 38,314.99
  4. Step 4: Simplify right side
    70,146.01x = 3,708,946,588.74
  5. Step 5: Solve for x
    x = 3,708,946,588.74/70,146.01
  6. Step 6: Final answer
    x = 52,874.66

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.