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Finding the Fourth Proportional to 97,969.32, 134,957.70 and 71,032.68

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Solution

The fourth proportional to 97,969.32, 134,957.70 and 71,032.68 is: 97,851.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    97,969.32 : 134,957.70 = 71,032.68 : x
  2. Step 2: Convert to fraction form
    97,969.32/134,957.70 = 71,032.68/x
  3. Step 3: Cross multiply
    97,969.32x = 134,957.70 × 71,032.68
  4. Step 4: Simplify right side
    97,969.32x = 9,586,407,117.64
  5. Step 5: Solve for x
    x = 9,586,407,117.64/97,969.32
  6. Step 6: Final answer
    x = 97,851.11

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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.