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Finding the Fourth Proportional to 137,651,398.84, 206,477,098.22 and 51,396,541.64

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Solution

The fourth proportional to 137,651,398.84, 206,477,098.22 and 51,396,541.64 is: 77,094,812.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    137,651,398.84 : 206,477,098.22 = 51,396,541.64 : x
  2. Step 2: Convert to fraction form
    137,651,398.84/206,477,098.22 = 51,396,541.64/x
  3. Step 3: Cross multiply
    137,651,398.84x = 206,477,098.22 × 51,396,541.64
  4. Step 4: Simplify right side
    137,651,398.84x = 10,612,208,776,370,600
  5. Step 5: Solve for x
    x = 10,612,208,776,370,600/137,651,398.84
  6. Step 6: Final answer
    x = 77,094,812.45

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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.