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Finding the Fourth Proportional to 64,066.61, 96,100.26 and 42,019.61

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Solution

The fourth proportional to 64,066.61, 96,100.26 and 42,019.61 is: 63,029.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,066.61 : 96,100.26 = 42,019.61 : x
  2. Step 2: Convert to fraction form
    64,066.61/96,100.26 = 42,019.61/x
  3. Step 3: Cross multiply
    64,066.61x = 96,100.26 × 42,019.61
  4. Step 4: Simplify right side
    64,066.61x = 4,038,094,965.60
  5. Step 5: Solve for x
    x = 4,038,094,965.60/64,066.61
  6. Step 6: Final answer
    x = 63,029.64

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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.