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Finding the Fourth Proportional to 253,798,862.76, 380,695,210.88 and 69,566,183.78

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Solution

The fourth proportional to 253,798,862.76, 380,695,210.88 and 69,566,183.78 is: 104,348,430.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    253,798,862.76 : 380,695,210.88 = 69,566,183.78 : x
  2. Step 2: Convert to fraction form
    253,798,862.76/380,695,210.88 = 69,566,183.78/x
  3. Step 3: Cross multiply
    253,798,862.76x = 380,695,210.88 × 69,566,183.78
  4. Step 4: Simplify right side
    253,798,862.76x = 26,483,513,001,992,632
  5. Step 5: Solve for x
    x = 26,483,513,001,992,632/253,798,862.76
  6. Step 6: Final answer
    x = 104,348,430.54

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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.