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Finding the Fourth Proportional to 93,461,741.24, 128,978,260.56 and 51,645,634.20

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Solution

The fourth proportional to 93,461,741.24, 128,978,260.56 and 51,645,634.20 is: 71,271,559.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,461,741.24 : 128,978,260.56 = 51,645,634.20 : x
  2. Step 2: Convert to fraction form
    93,461,741.24/128,978,260.56 = 51,645,634.20/x
  3. Step 3: Cross multiply
    93,461,741.24x = 128,978,260.56 × 51,645,634.20
  4. Step 4: Simplify right side
    93,461,741.24x = 6,661,164,064,634,048
  5. Step 5: Solve for x
    x = 6,661,164,064,634,048/93,461,741.24
  6. Step 6: Final answer
    x = 71,271,559.64

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.