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Finding the Fourth Proportional to 70,957.04, 97,918.62 and 39,125.93

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Solution

The fourth proportional to 70,957.04, 97,918.62 and 39,125.93 is: 53,992.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,957.04 : 97,918.62 = 39,125.93 : x
  2. Step 2: Convert to fraction form
    70,957.04/97,918.62 = 39,125.93/x
  3. Step 3: Cross multiply
    70,957.04x = 97,918.62 × 39,125.93
  4. Step 4: Simplify right side
    70,957.04x = 3,831,157,071.82
  5. Step 5: Solve for x
    x = 3,831,157,071.82/70,957.04
  6. Step 6: Final answer
    x = 53,992.63

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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.