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Finding the Fourth Proportional to 74,862,362.80, 112,277,797.80 and 31,732,973.20

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Solution

The fourth proportional to 74,862,362.80, 112,277,797.80 and 31,732,973.20 is: 47,592,785.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,862,362.80 : 112,277,797.80 = 31,732,973.20 : x
  2. Step 2: Convert to fraction form
    74,862,362.80/112,277,797.80 = 31,732,973.20/x
  3. Step 3: Cross multiply
    74,862,362.80x = 112,277,797.80 × 31,732,973.20
  4. Step 4: Simplify right side
    74,862,362.80x = 3,562,908,348,542,419
  5. Step 5: Solve for x
    x = 3,562,908,348,542,419/74,862,362.80
  6. Step 6: Final answer
    x = 47,592,785.15

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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.