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Finding the Fourth Proportional to 70,622,701.60, 105,934,052.40 and 36,554,490.40

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Solution

The fourth proportional to 70,622,701.60, 105,934,052.40 and 36,554,490.40 is: 54,831,735.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,622,701.60 : 105,934,052.40 = 36,554,490.40 : x
  2. Step 2: Convert to fraction form
    70,622,701.60/105,934,052.40 = 36,554,490.40/x
  3. Step 3: Cross multiply
    70,622,701.60x = 105,934,052.40 × 36,554,490.40
  4. Step 4: Simplify right side
    70,622,701.60x = 3,872,365,301,488,897
  5. Step 5: Solve for x
    x = 3,872,365,301,488,897/70,622,701.60
  6. Step 6: Final answer
    x = 54,831,735.60

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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.