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Finding the Fourth Proportional to 64,975,203.20, 97,489,048.80 and 28,590,521.60

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Solution

The fourth proportional to 64,975,203.20, 97,489,048.80 and 28,590,521.60 is: 42,897,330.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,975,203.20 : 97,489,048.80 = 28,590,521.60 : x
  2. Step 2: Convert to fraction form
    64,975,203.20/97,489,048.80 = 28,590,521.60/x
  3. Step 3: Cross multiply
    64,975,203.20x = 97,489,048.80 × 28,590,521.60
  4. Step 4: Simplify right side
    64,975,203.20x = 2,787,262,755,479,854
  5. Step 5: Solve for x
    x = 2,787,262,755,479,854/64,975,203.20
  6. Step 6: Final answer
    x = 42,897,330.34

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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.