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Finding the Fourth Proportional to 74,100.42, 111,070.98 and 32,000.40

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Solution

The fourth proportional to 74,100.42, 111,070.98 and 32,000.40 is: 47,966.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,100.42 : 111,070.98 = 32,000.40 : x
  2. Step 2: Convert to fraction form
    74,100.42/111,070.98 = 32,000.40/x
  3. Step 3: Cross multiply
    74,100.42x = 111,070.98 × 32,000.40
  4. Step 4: Simplify right side
    74,100.42x = 3,554,315,788.39
  5. Step 5: Solve for x
    x = 3,554,315,788.39/74,100.42
  6. Step 6: Final answer
    x = 47,966.20

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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.