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Finding the Fourth Proportional to 65,952,365.70, 98,928,548.55 and 56,173,851.30

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Solution

The fourth proportional to 65,952,365.70, 98,928,548.55 and 56,173,851.30 is: 84,260,776.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,952,365.70 : 98,928,548.55 = 56,173,851.30 : x
  2. Step 2: Convert to fraction form
    65,952,365.70/98,928,548.55 = 56,173,851.30/x
  3. Step 3: Cross multiply
    65,952,365.70x = 98,928,548.55 × 56,173,851.30
  4. Step 4: Simplify right side
    65,952,365.70x = 5,557,197,575,572,530
  5. Step 5: Solve for x
    x = 5,557,197,575,572,530/65,952,365.70
  6. Step 6: Final answer
    x = 84,260,776.95

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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.