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Finding the Fourth Proportional to 101,689,615.20, 152,534,422.80 and 60,874,946.40

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Solution

The fourth proportional to 101,689,615.20, 152,534,422.80 and 60,874,946.40 is: 91,312,419.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,689,615.20 : 152,534,422.80 = 60,874,946.40 : x
  2. Step 2: Convert to fraction form
    101,689,615.20/152,534,422.80 = 60,874,946.40/x
  3. Step 3: Cross multiply
    101,689,615.20x = 152,534,422.80 × 60,874,946.40
  4. Step 4: Simplify right side
    101,689,615.20x = 9,285,524,812,104,938
  5. Step 5: Solve for x
    x = 9,285,524,812,104,938/101,689,615.20
  6. Step 6: Final answer
    x = 91,312,419.60

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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.