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Finding the Fourth Proportional to 64,941.70, 97,412.55 and 61,005.10

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Solution

The fourth proportional to 64,941.70, 97,412.55 and 61,005.10 is: 91,507.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,941.70 : 97,412.55 = 61,005.10 : x
  2. Step 2: Convert to fraction form
    64,941.70/97,412.55 = 61,005.10/x
  3. Step 3: Cross multiply
    64,941.70x = 97,412.55 × 61,005.10
  4. Step 4: Simplify right side
    64,941.70x = 5,942,662,354.01
  5. Step 5: Solve for x
    x = 5,942,662,354.01/64,941.70
  6. Step 6: Final answer
    x = 91,507.65

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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.