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Finding the Fourth Proportional to 74,020.80, 103,862.40 and 74,020.80

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Solution

The fourth proportional to 74,020.80, 103,862.40 and 74,020.80 is: 103,862.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,020.80 : 103,862.40 = 74,020.80 : x
  2. Step 2: Convert to fraction form
    74,020.80/103,862.40 = 74,020.80/x
  3. Step 3: Cross multiply
    74,020.80x = 103,862.40 × 74,020.80
  4. Step 4: Simplify right side
    74,020.80x = 7,687,977,937.92
  5. Step 5: Solve for x
    x = 7,687,977,937.92/74,020.80
  6. Step 6: Final answer
    x = 103,862.40

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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.