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Finding the Fourth Proportional to 70,804.78, 97,710.24 and 38,973.04

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Solution

The fourth proportional to 70,804.78, 97,710.24 and 38,973.04 is: 53,782.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,804.78 : 97,710.24 = 38,973.04 : x
  2. Step 2: Convert to fraction form
    70,804.78/97,710.24 = 38,973.04/x
  3. Step 3: Cross multiply
    70,804.78x = 97,710.24 × 38,973.04
  4. Step 4: Simplify right side
    70,804.78x = 3,808,065,091.93
  5. Step 5: Solve for x
    x = 3,808,065,091.93/70,804.78
  6. Step 6: Final answer
    x = 53,782.60

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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.