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Finding the Fourth Proportional to 53,413,602.80, 80,120,404.20 and 19,322,646.80

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Solution

The fourth proportional to 53,413,602.80, 80,120,404.20 and 19,322,646.80 is: 28,983,970.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,413,602.80 : 80,120,404.20 = 19,322,646.80 : x
  2. Step 2: Convert to fraction form
    53,413,602.80/80,120,404.20 = 19,322,646.80/x
  3. Step 3: Cross multiply
    53,413,602.80x = 80,120,404.20 × 19,322,646.80
  4. Step 4: Simplify right side
    53,413,602.80x = 1,548,138,271,829,836.75
  5. Step 5: Solve for x
    x = 1,548,138,271,829,836.75/53,413,602.80
  6. Step 6: Final answer
    x = 28,983,970.20

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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.