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Finding the Fourth Proportional to 61,416.64, 92,124.64 and 53,071.30

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Solution

The fourth proportional to 61,416.64, 92,124.64 and 53,071.30 is: 79,606.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,416.64 : 92,124.64 = 53,071.30 : x
  2. Step 2: Convert to fraction form
    61,416.64/92,124.64 = 53,071.30/x
  3. Step 3: Cross multiply
    61,416.64x = 92,124.64 × 53,071.30
  4. Step 4: Simplify right side
    61,416.64x = 4,889,174,406.83
  5. Step 5: Solve for x
    x = 4,889,174,406.83/61,416.64
  6. Step 6: Final answer
    x = 79,606.67

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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.