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Finding the Fourth Proportional to 108,872,552.80, 163,308,829.20 and 72,592,847.20

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Solution

The fourth proportional to 108,872,552.80, 163,308,829.20 and 72,592,847.20 is: 108,889,270.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,872,552.80 : 163,308,829.20 = 72,592,847.20 : x
  2. Step 2: Convert to fraction form
    108,872,552.80/163,308,829.20 = 72,592,847.20/x
  3. Step 3: Cross multiply
    108,872,552.80x = 163,308,829.20 × 72,592,847.20
  4. Step 4: Simplify right side
    108,872,552.80x = 11,855,052,884,526,498
  5. Step 5: Solve for x
    x = 11,855,052,884,526,498/108,872,552.80
  6. Step 6: Final answer
    x = 108,889,270.80

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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.