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Finding the Fourth Proportional to 201,017,773.80, 301,526,660.70 and 86,013,941.40

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Solution

The fourth proportional to 201,017,773.80, 301,526,660.70 and 86,013,941.40 is: 129,020,912.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    201,017,773.80 : 301,526,660.70 = 86,013,941.40 : x
  2. Step 2: Convert to fraction form
    201,017,773.80/301,526,660.70 = 86,013,941.40/x
  3. Step 3: Cross multiply
    201,017,773.80x = 301,526,660.70 × 86,013,941.40
  4. Step 4: Simplify right side
    201,017,773.80x = 25,935,496,523,987,484
  5. Step 5: Solve for x
    x = 25,935,496,523,987,484/201,017,773.80
  6. Step 6: Final answer
    x = 129,020,912.10

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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.