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Finding the Fourth Proportional to 64,862.70, 97,140.45 and 43,973.10

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Solution

The fourth proportional to 64,862.70, 97,140.45 and 43,973.10 is: 65,855.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,862.70 : 97,140.45 = 43,973.10 : x
  2. Step 2: Convert to fraction form
    64,862.70/97,140.45 = 43,973.10/x
  3. Step 3: Cross multiply
    64,862.70x = 97,140.45 × 43,973.10
  4. Step 4: Simplify right side
    64,862.70x = 4,271,566,721.90
  5. Step 5: Solve for x
    x = 4,271,566,721.90/64,862.70
  6. Step 6: Final answer
    x = 65,855.52

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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.