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Finding the Fourth Proportional to 64,871.80, 97,307.70 and 41,543.80

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Solution

The fourth proportional to 64,871.80, 97,307.70 and 41,543.80 is: 62,315.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,871.80 : 97,307.70 = 41,543.80 : x
  2. Step 2: Convert to fraction form
    64,871.80/97,307.70 = 41,543.80/x
  3. Step 3: Cross multiply
    64,871.80x = 97,307.70 × 41,543.80
  4. Step 4: Simplify right side
    64,871.80x = 4,042,531,627.26
  5. Step 5: Solve for x
    x = 4,042,531,627.26/64,871.80
  6. Step 6: Final answer
    x = 62,315.70

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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.