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Finding the Fourth Proportional to 39,361,978.80, 59,042,968.20 and 25,048,501.20

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Solution

The fourth proportional to 39,361,978.80, 59,042,968.20 and 25,048,501.20 is: 37,572,751.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,361,978.80 : 59,042,968.20 = 25,048,501.20 : x
  2. Step 2: Convert to fraction form
    39,361,978.80/59,042,968.20 = 25,048,501.20/x
  3. Step 3: Cross multiply
    39,361,978.80x = 59,042,968.20 × 25,048,501.20
  4. Step 4: Simplify right side
    39,361,978.80x = 1,478,937,859,809,261.75
  5. Step 5: Solve for x
    x = 1,478,937,859,809,261.75/39,361,978.80
  6. Step 6: Final answer
    x = 37,572,751.80

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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.