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Finding the Fourth Proportional to 68,902,684.80, 103,354,027.20 and 59,549,323.20

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Solution

The fourth proportional to 68,902,684.80, 103,354,027.20 and 59,549,323.20 is: 89,323,984.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,902,684.80 : 103,354,027.20 = 59,549,323.20 : x
  2. Step 2: Convert to fraction form
    68,902,684.80/103,354,027.20 = 59,549,323.20/x
  3. Step 3: Cross multiply
    68,902,684.80x = 103,354,027.20 × 59,549,323.20
  4. Step 4: Simplify right side
    68,902,684.80x = 6,154,662,369,754,392
  5. Step 5: Solve for x
    x = 6,154,662,369,754,392/68,902,684.80
  6. Step 6: Final answer
    x = 89,323,984.80

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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.