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Finding the Fourth Proportional to 73,809,779.20, 110,714,668.80 and 53,402,444.80

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Solution

The fourth proportional to 73,809,779.20, 110,714,668.80 and 53,402,444.80 is: 80,103,667.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,809,779.20 : 110,714,668.80 = 53,402,444.80 : x
  2. Step 2: Convert to fraction form
    73,809,779.20/110,714,668.80 = 53,402,444.80/x
  3. Step 3: Cross multiply
    73,809,779.20x = 110,714,668.80 × 53,402,444.80
  4. Step 4: Simplify right side
    73,809,779.20x = 5,912,433,989,142,282
  5. Step 5: Solve for x
    x = 5,912,433,989,142,282/73,809,779.20
  6. Step 6: Final answer
    x = 80,103,667.20

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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.